CVE-2012-3527
TYPO3 allows remote authenticated backend users to unserialize arbitrary objects
view_help.php in the backend help system in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to unserialize arbitrary objects and possibly execute arbitrary PHP code via an unspecified parameter, related to a "missing signature (HMAC)."
Exploit likelihood
What each source reports
NVD Score used
view_help.php in the backend help system in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to unserialize arbitrary objects and possibly execute arbitrary PHP code via an unspecified parameter, related to a "missing signature (HMAC)."
- Record
CVE-2012-3527- CVSS 2.0
- 4.6 Medium
AV:N/AC:H/Au:S/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE List No score
view_help.php in the backend help system in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to unserialize arbitrary objects and possibly execute arbitrary PHP code via an unspecified parameter, related to a "missing signature (HMAC)."
- Record
CVE-2012-3527- Updated
- 2026-11-02
EUVDEUVD-2012-3482 No score
view_help.php in the backend help system in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to unserialize arbitrary objects and possibly execute arbitrary PHP code via an unspecified parameter, related to a "missing signature (HMAC)."
- Record
EUVD-2012-3482- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m4hw-r893-xh4g No score
TYPO3 allows remote authenticated backend users to unserialize arbitrary objects
view_help.php in the backend help system in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to unserialize arbitrary objects and possibly execute arbitrary PHP code via an unspecified parameter, related to a "missing signature (HMAC)."
- Record
GHSA-m4hw-r893-xh4g- Weakness
- CWE-502
- Updated
- 2026-11-02
OSVGHSA-m4hw-r893-xh4g No score
TYPO3 allows remote authenticated backend users to unserialize arbitrary objects
view_help.php in the backend help system in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to unserialize arbitrary objects and possibly execute arbitrary PHP code via an unspecified parameter, related to a "missing signature (HMAC)."
- Record
GHSA-m4hw-r893-xh4g- Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
typo3/cmsPackagist |
4.5.0 up to 4.5.19 | 4.5.19 |
typo3/cmsPackagist |
4.6.0 up to 4.6.12 | 4.6.12 |
typo3/cmsPackagist |
4.7.0 up to 4.7.4 | 4.7.4 |
typo3-srcDebian:6.0 |
before 4.3.9+dfsg1-1+squeeze5, plus listed versions 4.3.9+dfsg1-14.3.9+dfsg1-1+squeeze14.3.9+dfsg1-1+squeeze24.3.9+dfsg1-1+squeeze34.3.9+dfsg1-1+squeeze4 |
4.3.9+dfsg1-1+squeeze5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-3527 is a medium vulnerability (CVSS 4.6) in Typo3, published August 30, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.12%, the 81st percentile. Fixed in typo3/cms 4.5.19.