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  5. CVE-2021-21311

CVE-2021-21311: SSRF in adminer

February 11, 2021 (updated October 22, 2025)

Users of Adminer versions bundling all drivers (e.g. adminer.php) are affected.

References

  • github.com/advisories/GHSA-x5r2-hj5c-8jx6
  • github.com/vrana/adminer
  • github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351
  • github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf
  • github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6
  • lists.debian.org/debian-lts-announce/2021/03/msg00002.html
  • nvd.nist.gov/vuln/detail/CVE-2021-21311
  • packagist.org/packages/vrana/adminer
  • sourceforge.net/p/adminer/news/2021/02/adminer-479-released
  • www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21311

Code Behaviors & Features

Detect and mitigate CVE-2021-21311 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 4.7.9

Fixed versions

  • 4.7.9

Solution

Upgrade to version 4.7.9 or above.

Impact 7.2 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-918: Server-Side Request Forgery (SSRF)

Source file

packagist/vrana/adminer/CVE-2021-21311.yml

Spotted a mistake? Edit the file on GitLab.

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