AEGLIX vulnerability intelligence
CVE-2021-21311
HIGH · CVSS 7.2 · Analyzed
Published: 2021-02-11 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
Adminer is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. `adminer.php`) are affected. This is fixed in version 4.7.9.
Severity and scoring
- CVSS score
- 7.2 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-918
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Adminer · Adminer
- Added to catalog
- 2025-09-29
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA remediation due date
- 2025-10-20
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:adminer:adminer:*:*:*:*:*:*:*:*
From (inclusive): 4.0.0
Before (exclusive): 4.7.9
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351
Patch
- https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf
Exploit · Third Party Advisory
- https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6
Patch · Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00002.html
Mailing List · Third Party Advisory
- https://packagist.org/packages/vrana/adminer
Product · Third Party Advisory
- https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351
Patch
- https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf
Exploit · Third Party Advisory
- https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6
Patch · Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00002.html
Mailing List · Third Party Advisory
- https://packagist.org/packages/vrana/adminer
Product · Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21311
US Government Resource