The File Abstraction Layer (FAL) in TYPO3 6.0.x before 6.0.8 and 6.1.x before 6.1.4 allows remote authenticated editors to execute arbitrary PHP code via unspecified characters in the file extension when renaming a file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-4250.
CVE-2013-4321
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 62.2%
- KEV
- Not listed
Published
May 20, 2014
Last Modified
May 6, 2026
References (2)
- secalert@redhathttps://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2013-003/
- af854a3a-2127-422b-91ae-364da2661108https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2013-003/
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| typo3/cms | — | 6.1.4 | — |
Data Freshness Timeline
(refreshed 7× in last 7d / 36× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 02:19 UTCEPSS rescore
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- 2026-05-28 18:54 UTCEG score recompute
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- 2026-05-18 21:29 UTCEPSS rescore
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Frequently asked(4)
What is CVE-2013-4321?
CVE-2013-4321 is a none vulnerability published on May 20, 2014. The File Abstraction Layer (FAL) in TYPO3 6.0.x before 6.0.8 and 6.1.x before 6.1.4 allows remote authenticated editors to execute arbitrary PHP code via unspecified characters in the file extension when renaming a file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-4250.
When was CVE-2013-4321 disclosed?
CVE-2013-4321 was first published in the National Vulnerability Database on May 20, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-4321 actively exploited?
CVE-2013-4321 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2013-4321?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-4321, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2013-4321
Is Your Infrastructure Affected by CVE-2013-4321?
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