CVE-2021-21311

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2021-21311

Confirmed

Yes

2025-09-29 00:00 UTC

Timestamps

2025-09-29

2025-09-29

Scope

KEV entry: Adminer Server-Side Request Forgery Vulnerability | Affected: Adminer / Adminer | Description: Adminer contains a server-side request forgery vulnerability that, when exploited, allows a remote attacker to obtain potentially sensitive information. | 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. | Due date: 2025-10-20 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6 ; https://nvd.nist.gov/vuln/detail/CVE-2021-21311

References
  • {'id': 'CVE-2021-21311', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-21311'}

948b89c9-8eae-4dc8-afaa-5e23fc0852d9

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 12:25 UTC

2026-02-02 12:25 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-918"
  ],
  "date_added": "2025-09-29",
  "due_date": "2025-10-20",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Adminer",
  "vendorProject": "Adminer",
  "vulnerabilityName": "Adminer Server-Side Request Forgery Vulnerability"
}
 -
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