Backend users with file write permissions were able to upload form definition files with mixed-case extensions (e.g., .FORM.YAML) to bypass the Form Framework's upload restriction. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.50, 12.0.0-12.4.45, 13.0.0-13.4.30 and 14.0.0-14.3.2.
CVE-2026-47346
This high-severity CVE scores 7.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.6
- EG Score
- 7.6(medium)
- EG Risk
- 34(Track)EG Risk 34/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity76% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 17%
- KEV
- Not listed
Published
June 9, 2026
Last Modified
July 23, 2026
Advisory Details (3)
Auto-updated Jun 9, 2026TYPO3-CORE-SA-2026-008: Broken Access Control in Form Framework - TYPO3 Project
https://typo3.org/security/advisory/typo3-core-sa-2026-008commit eb2b2251d903 (TYPO3/typo3)
Fix landed in TYPO3/typo3 commit eb2b2251d903 — awaiting tagged release
https://github.com/TYPO3/typo3/commit/eb2b2251d90339d3ab55df3d4c0378ae0c780b45commit 2030617e6f27 (TYPO3/typo3)
Fix landed in TYPO3/typo3 commit 2030617e6f27 — awaiting tagged release
https://github.com/TYPO3/typo3/commit/2030617e6f273cee7b756c695f0a48a45a31eb47Vendor Advisories for CVE-2026-47346(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(2 across 1 ecosystem)
Packagist(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| typo3/cms-core | v14.0.0 ... v14.3.2 (9 versions) | 14.3.3 | — |
| typo3/cms-form | v14.0.0 ... v14.3.2 (9 versions) | 14.3.3 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 38× 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.
- 2026-08-03 10:36 UTCEPSS rescore
- 2026-08-02 08:45 UTCEG score recompute
- 2026-08-02 02:27 UTCEPSS rescore
- 2026-08-01 10:26 UTCEG score recompute
- 2026-08-01 04:16 UTCEPSS rescore
- 2026-07-31 01:23 UTCEG score recompute
- 2026-07-30 16:28 UTCEPSS rescore
- 2026-07-30 11:14 UTCEG score recompute
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-29 05:28 UTCEG score recompute
- 2026-07-28 15:37 UTCEPSS rescore
- 2026-07-28 02:47 UTCEG score recompute
- 2026-07-26 21:28 UTCEG score recompute
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 06:54 UTCEG score recompute
- 2026-07-25 14:18 UTCEPSS rescore
- 2026-07-24 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:17 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 02:29 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
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- 2026-07-16 17:03 UTCEPSS rescore
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- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-09 19:10 UTCEPSS rescore
- 2026-07-08 15:16 UTCEPSS rescore
- 2026-07-07 13:46 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
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- 2026-06-28 14:07 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-28 04:56 UTCEPSS rescore
- 2026-06-27 03:08 UTCEPSS rescore
- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-24 14:05 UTCEPSS rescore
- 2026-06-23 21:33 UTCEPSS rescore
- 2026-06-23 21:33 UTCEPSS rescore
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-22 14:25 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 14:56 UTCEPSS rescore
- 2026-06-21 01:59 UTCEPSS rescore
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- 2026-06-19 19:26 UTCEPSS rescore
- 2026-06-19 19:26 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-17 17:53 UTCEPSS rescore
- 2026-06-16 17:53 UTCEPSS rescore
- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-15 17:49 UTCEPSS rescore
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-11 14:00 UTCEPSS rescore
- 2026-06-10 22:18 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-10 13:22 UTCEPSS rescore
- 2026-06-09 11:20 UTCEG score recompute
- 2026-06-09 11:19 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-862
- CVE-2013-3960EG 9.9CRITICAL
- CVE-2015-10143EG 9.8CRITICAL
- CVE-2016-11036EG 9.8CRITICAL
- CVE-2011-4183NVD 6.5EG 9.8CRITICAL
- CVE-2018-0015EG 9.8CRITICAL
- CVE-2017-12582EG 9.8CRITICAL
- CVE-2017-1000056EG 9.8CRITICAL
- CVE-2017-6639EG 9.8EPSS p98CRITICAL
- CVE-2017-9232EG 9.8EPSS p99CRITICAL
- CVE-2017-6622EG 9.8EPSS p99CRITICAL
Frequently asked(5)
What is CVE-2026-47346?
When was CVE-2026-47346 disclosed?
Is CVE-2026-47346 actively exploited?
What is the CVSS score of CVE-2026-47346?
How do I remediate CVE-2026-47346?
Dependency Blast Radius
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