CVE-2026-48488: Thorsten/phpmyfaq PhpMyFAQ Has Weak Cryptography - Vulnerability

LOW
Advisory Identifier: GHSA-58fg-62fg-3fcj
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CWE-328
Published
Advisory Summary

CVE-2026-48488 is a LOW phpmyfaq has weak cryptography - vulnerability (CWE-328: Use of Weak Hash) affecting Thorsten/phpmyfaq libraries in the Packagist ecosystem. The issue involves phpmyfaq has weak cryptography - sha1 for password hashing. Remediation is available by upgrading affected packages to version 4.1.4.

CVE-2026-48488 at a Glance

CVE Identifier CVE-2026-48488
GHSA Identifier GHSA-58fg-62fg-3fcj
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-328: Use of Weak Hash
Affected Product Thorsten/phpmyfaq
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2026-48488

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

thorsten/phpmyfaq fixed: 4.1.4 
Upgrade thorsten/phpmyfaq to 4.1.4
phpmyfaq/phpmyfaq fixed: 4.1.4 
Upgrade phpmyfaq/phpmyfaq to 4.1.4
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 thorsten/phpmyfaq

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-48488, inspect your project dependencies for Thorsten/phpmyfaq:

inspect dependencies for thorsten/phpmyfaq

Analyze the terminal output to locate any version of Thorsten/phpmyfaq in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.1.4), 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-328: Use of Weak Hash, where the product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack). In Thorsten/phpmyfaq, 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 Attachment passwords are hashed using SHA-1, a cryptographically broken algorithm. SHA-1 has been vulnerable to collision attacks since 2017 (SHAttered). ### Details **Affected File** : `phpmyfaq/src/phpMyFAQ/Attachment/AbstractAttachment.php` <img width="810" height="427" alt="image" src="https://github.com/user-attachments/assets/6499a008-3ece-4291-8296-f1d3303ba35c" /> ### Impact - An attacker can generate SHA-1 collisions to bypass attachment protection - Risk of password cracking if database is compromised - Estimated cracking time: < 1 minute for standard attachment ### Solution **Use bcrypt:** ``` public function setPassword(string $password): void { $this->passwordHash = password_hash($password, PASSWORD_BCRYPT); } public function verifyPassword(string $plainPassword): bool { return password_verify($plainPassword, $this->passwordHash); } ```

CVE-2026-48488 Affected Thorsten/phpmyfaq Versions

2 component(s)
Fixed Versions:
4.1.4
Product / Package Ecosystem Affected Versions Fixed Version
thorsten/phpmyfaq
 Packagist
< 4.1.4
4.1.4
phpmyfaq/phpmyfaq
 Packagist
< 4.1.4
4.1.4

References

GitHub Advisory / Wiki ADVISORY
https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-58fg-62fg-3fcj
NVD — CVE-2026-48488 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48488
Security Fix Commit FIX COMMIT
https://github.com/thorsten/phpMyFAQ/commit/1aa9be6f8a2fa5c527c983826205229fc3129718
Thorsten/phpmyfaq Source Repository REPOSITORY
https://github.com/thorsten/phpMyFAQ

Frequently Asked Questions

What is CVE-2026-48488?
CVE-2026-48488 is a security vulnerability in Thorsten/phpmyfaq involving phpMyFAQ has Weak Cryptography - SHA1 for Password Hashing under CWE-328: Use of Weak Hash.
Which Thorsten/phpmyfaq versions are affected?
Affected versions include releases prior to 4.1.4 across affected packages: thorsten/phpmyfaq, phpmyfaq/phpmyfaq.
What version fixes CVE-2026-48488?
Upgrading to 4.1.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is thorsten/phpmyfaq affected?
Yes, thorsten/phpmyfaq is affected in releases prior to 4.1.4. Upgrade your dependency to 4.1.4 or later.
Is phpmyfaq/phpmyfaq affected?
Yes, phpmyfaq/phpmyfaq is affected in releases prior to 4.1.4. Upgrade your dependency to 4.1.4 or later.
What CWE is associated with CVE-2026-48488?
CVE-2026-48488 is classified under CWE-328: Use of Weak Hash (The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack).).
How can I check Packagist dependencies for CVE-2026-48488?
Run the dependency tree command: 'inspect dependencies for thorsten/phpmyfaq'. 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-58fg-62fg-3fcj",
  "modified" : "2026-06-23T22:02:25Z",
  "published" : "2026-06-23T22:02:25Z",
  "aliases" : [ "CVE-2026-48488" ],
  "summary" : "phpMyFAQ has Weak Cryptography - SHA1 for Password Hashing",
  "details" : "### Summary\n\nAttachment passwords are hashed using SHA-1, a cryptographically broken algorithm. SHA-1 has been vulnerable to collision attacks since 2017 (SHAttered).\n\n### Details\n\n**Affected File** : `phpmyfaq/src/phpMyFAQ/Attachment/AbstractAttachment.php`\n\n<img width=\"810\" height=\"427\" alt=\"image\" src=\"https://github.com/user-attachments/assets/6499a008-3ece-4291-8296-f1d3303ba35c\" />\n\n\n### Impact\n\n- An attacker can generate SHA-1 collisions to bypass attachment protection\n- Risk of password cracking if database is compromised\n- Estimated cracking time: < 1 minute for standard attachment\n\n### Solution\n\n**Use bcrypt:**\n\n```\npublic function setPassword(string $password): void\n{\n    $this->passwordHash = password_hash($password, PASSWORD_BCRYPT);\n}\n\npublic function verifyPassword(string $plainPassword): bool\n{\n    return password_verify($plainPassword, $this->passwordHash);\n}\n```",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "thorsten/phpmyfaq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.4"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.1.3"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "phpmyfaq/phpmyfaq"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.1.4"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 4.1.3"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-58fg-62fg-3fcj"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-48488"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/thorsten/phpMyFAQ/commit/1aa9be6f8a2fa5c527c983826205229fc3129718"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/thorsten/phpMyFAQ"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-328" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-23T22:02:25Z",
    "nvd_published_at" : "2026-06-08T16:16:43Z"
  }
}