CVE-2023-6027: Elijaa/phpmemcacheadmin Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-pr4w-m4rp-gp87
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2023-6027 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Elijaa/phpmemcacheadmin libraries in the Packagist ecosystem. The issue involves phpmemcachedadmin vulnerable to cross-site scripting (xss) via improper encoding. Remediation is available in the latest vendor maintenance releases.

CVE-2023-6027 at a Glance

CVE Identifier CVE-2023-6027
GHSA Identifier GHSA-pr4w-m4rp-gp87
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Elijaa/phpmemcacheadmin
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.1

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:R/S:C/C:L/I:L/A:N).

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

How to Fix CVE-2023-6027

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

elijaa/phpmemcacheadmin fixed: Latest secure release 
Upgrade elijaa/phpmemcacheadmin to Latest secure release
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 elijaa/phpmemcacheadmin

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-6027, inspect your project dependencies for Elijaa/phpmemcacheadmin:

inspect dependencies for elijaa/phpmemcacheadmin

Analyze the terminal output to locate any version of Elijaa/phpmemcacheadmin in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Elijaa/phpmemcacheadmin, 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

A critical flaw has been identified in elijaa/phpmemcachedadmin affecting version 1.3.0, specifically related to a stored XSS vulnerability. This vulnerability allows malicious actors to insert a carefully crafted JavaScript payload. The issue arises from improper encoding of user-controlled entries in the "/pmcadmin/configure.php" parameter.

CVE-2023-6027 Affected Elijaa/phpmemcacheadmin Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
elijaa/phpmemcacheadmin
 Packagist
≤ 1.3.0

References

NVD — CVE-2023-6027 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6027
Elijaa/phpmemcacheadmin Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/elijaa/phpmemcacheadmin/CVE-2023-6027.yaml
Elijaa/phpmemcacheadmin Source Repository REPOSITORY
https://github.com/elijaa/phpmemcachedadmin
www.incibe.es/en/incibe-cert/noti... WEB
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-phpmemcachedadmin

Frequently Asked Questions

What is CVE-2023-6027?
CVE-2023-6027 is a security vulnerability in Elijaa/phpmemcacheadmin involving PHPMemcachedAdmin vulnerable to cross-site scripting (XSS) via improper encoding under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Elijaa/phpmemcacheadmin versions are affected?
Affected versions include releases prior to current release patches across affected packages: elijaa/phpmemcacheadmin.
What version fixes CVE-2023-6027?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is elijaa/phpmemcacheadmin affected?
Yes, elijaa/phpmemcacheadmin is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-6027?
CVE-2023-6027 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2023-6027?
CVE-2023-6027 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2023-6027?
Run the dependency tree command: 'inspect dependencies for elijaa/phpmemcacheadmin'. 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-pr4w-m4rp-gp87",
  "modified" : "2023-12-06T17:41:49Z",
  "published" : "2023-11-30T15:30:24Z",
  "aliases" : [ "CVE-2023-6027" ],
  "summary" : "PHPMemcachedAdmin vulnerable to cross-site scripting (XSS) via improper encoding",
  "details" : "A critical flaw has been identified in elijaa/phpmemcachedadmin affecting version 1.3.0, specifically related to a stored XSS vulnerability. This vulnerability allows malicious actors to insert a carefully crafted JavaScript payload. The issue arises from improper encoding of user-controlled entries in the \"/pmcadmin/configure.php\" parameter.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "elijaa/phpmemcacheadmin"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-6027"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/elijaa/phpmemcacheadmin/CVE-2023-6027.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/elijaa/phpmemcachedadmin"
  }, {
    "type" : "WEB",
    "url" : "https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-phpmemcachedadmin"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-12-06T17:41:49Z",
    "nvd_published_at" : "2023-11-30T14:15:14Z"
  }
}