CVE-2025-53093: Starcitizentools/tabber neue Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-jfj7-249r-7j2m
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CVSS 8.6
CWE-80 CWE-79
Published
Advisory Summary

CVE-2025-53093 is a HIGH (CVSS 8.6) cross-site scripting vulnerability (CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)) affecting Starcitizentools/tabber neue libraries in the Packagist ecosystem. The issue involves tabberneue vulnerable to stored xss through wikitext. Remediation is available by upgrading affected packages to version 3.1.1.

CVE-2025-53093 at a Glance

CVE Identifier CVE-2025-53093
GHSA Identifier GHSA-jfj7-249r-7j2m
Severity HIGH
CVSS v3.1 Base Score 8.6
CWE Classification CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Affected Product Starcitizentools/tabber neue
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.6

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2025-53093

To remediate this vulnerability, upgrade all affected Starcitizentools/tabber neue dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

starcitizentools/tabber-neue fixed: 3.1.1 
Upgrade starcitizentools/tabber-neue to 3.1.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for starcitizentools/tabber-neue

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-53093, inspect your project dependencies for Starcitizentools/tabber neue:

inspect dependencies for starcitizentools/tabber-neue

Analyze the terminal output to locate any version of Starcitizentools/tabber neue in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.1.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS), where the product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. In Starcitizentools/tabber neue, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary Arbitrary HTML can be inserted into the DOM by inserting a payload into any allowed attribute of the `<tabber>` tag. ### Details The `args` provided within the wikitext as attributes to the `<tabber>` tag are passed to the TabberComponentTabs class: https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Tabber.php#L76 In TabberComponentTabs, the attributes are validated before being supplied to the Tabs template. https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Components/TabberComponentTabs.php#L15-L31 However, the validation is insufficient. What `Sanitizer::validateTagAttributes` does is call `validateAttributes`, which ``` * - Discards attributes not on the given list * - Unsafe style attributes are discarded * - Invalid id attributes are re-encoded ``` However, the attribute values are expected to be escaped when inserted into HTML. The attribute values are then inserted into HTML without being escaped: https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/templates/Tabs.mustache#L1 ### PoC #### XSS through attributes: 1. Go to Special:ExpandTemplates and insert the following wikitext: ``` <tabber class='test123" onmouseenter="alert(1)"'> |-|First Tab Title= First tab content goes here. </tabber> ``` 2. Press "OK" 3. Hover over the tabber ![image](https://github.com/user-attachments/assets/bb65a587-e277-4936-b9f9-400ad7c39040) #### XSS through script tags: 1. Go to Special:ExpandTemplates and insert the following wikitext: ``` <tabber class='test123"&gt;&lt;script&gt;alert(2)&lt;/script&gt;'> |-|First Tab Title= First tab content goes here. </tabber> ``` 2. Press "OK" ![image](https://github.com/user-attachments/assets/a51ede5c-f9a0-49be-875e-37d30a083721) ### Impact Arbitrary HTML can be inserted into the DOM by any user, allowing for JavaScript to be executed.

CVE-2025-53093 Affected Starcitizentools/tabber neue Versions

1 component(s)
Fixed Versions:
3.1.1
Product / Package Ecosystem Affected Versions Fixed Version
starcitizentools/tabber-neue
 Packagist
≥ 3.0.0
< 3.1.1
3.1.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/security/advisories/GHSA-jfj7-249r-7j2m
NVD — CVE-2025-53093 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53093
Security Fix Commit FIX COMMIT
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/4cdf217ef96da74a1503d1dd0bb0ed898fc2a612
Security Fix Commit FIX COMMIT
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/62ce0fcdf32bd3cfa77f92ff6b940459a14315fa
Starcitizentools/tabber neue Source Repository REPOSITORY
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue
Starcitizentools/tabber neue Source Repository REPOSITORY
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Components/TabberComponentTabs.php#L15-L31
Starcitizentools/tabber neue Source Repository REPOSITORY
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Tabber.php#L76
Starcitizentools/tabber neue Source Repository REPOSITORY
https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/templates/Tabs.mustache#L1

Frequently Asked Questions

What is CVE-2025-53093?
CVE-2025-53093 is a security vulnerability in Starcitizentools/tabber neue involving TabberNeue vulnerable to Stored XSS through wikitext under CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS).
Which Starcitizentools/tabber neue versions are affected?
Affected versions include releases prior to 3.1.1 across affected packages: starcitizentools/tabber-neue.
What version fixes CVE-2025-53093?
Upgrading to 3.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is starcitizentools/tabber-neue affected?
Yes, starcitizentools/tabber-neue is affected in releases prior to 3.1.1. Upgrade your dependency to 3.1.1 or later.
What is the CVSS score of CVE-2025-53093?
CVE-2025-53093 has a CVSS v3.1 base score of 8.6 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.
What CWE is associated with CVE-2025-53093?
CVE-2025-53093 is classified under CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) (The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.).
How can I check Packagist dependencies for CVE-2025-53093?
Run the dependency tree command: 'inspect dependencies for starcitizentools/tabber-neue'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jfj7-249r-7j2m",
  "modified" : "2025-06-27T20:50:40Z",
  "published" : "2025-06-27T20:50:40Z",
  "aliases" : [ "CVE-2025-53093" ],
  "summary" : "TabberNeue vulnerable to Stored XSS through wikitext",
  "details" : "### Summary\nArbitrary HTML can be inserted into the DOM by inserting a payload into any allowed attribute of the `<tabber>` tag.\n\n### Details\n\nThe `args` provided within the wikitext as attributes to the `<tabber>` tag are passed to the TabberComponentTabs class:\nhttps://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Tabber.php#L76\n\nIn TabberComponentTabs, the attributes are validated before being supplied to the Tabs template.\nhttps://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Components/TabberComponentTabs.php#L15-L31\nHowever, the validation is insufficient.\nWhat `Sanitizer::validateTagAttributes` does is call `validateAttributes`, which\n```\n\t * - Discards attributes not on the given list\n\t * - Unsafe style attributes are discarded\n\t * - Invalid id attributes are re-encoded\n```\nHowever, the attribute values are expected to be escaped when inserted into HTML.\n\nThe attribute values are then inserted into HTML without being escaped:\nhttps://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/templates/Tabs.mustache#L1\n\n### PoC\n#### XSS through attributes:\n1. Go to Special:ExpandTemplates and insert the following wikitext:\n```\n<tabber class='test123\" onmouseenter=\"alert(1)\"'>\n|-|First Tab Title=\nFirst tab content goes here.\n</tabber>\n```\n2. Press \"OK\"\n3. Hover over the tabber\n\n![image](https://github.com/user-attachments/assets/bb65a587-e277-4936-b9f9-400ad7c39040)\n\n\n#### XSS through script tags:\n1. Go to Special:ExpandTemplates and insert the following wikitext:\n```\n<tabber class='test123\"&gt;&lt;script&gt;alert(2)&lt;/script&gt;'>\n|-|First Tab Title=\nFirst tab content goes here.\n</tabber>\n```\n2. Press \"OK\"\n![image](https://github.com/user-attachments/assets/a51ede5c-f9a0-49be-875e-37d30a083721)\n\n### Impact\nArbitrary HTML can be inserted into the DOM by any user, allowing for JavaScript to be executed.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "starcitizentools/tabber-neue"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/security/advisories/GHSA-jfj7-249r-7j2m"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-53093"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/4cdf217ef96da74a1503d1dd0bb0ed898fc2a612"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/62ce0fcdf32bd3cfa77f92ff6b940459a14315fa"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Components/TabberComponentTabs.php#L15-L31"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Tabber.php#L76"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/templates/Tabs.mustache#L1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79", "CWE-80" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-06-27T20:50:40Z",
    "nvd_published_at" : "2025-06-27T18:15:50Z"
  }
}