CVE-2012-3527
TYPO3 allows remote authenticated backend users to unserialize arbitrary objects
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 82nd percentile. Fixed in typo3/cms 4.5.19.
- Severity
- 4.6 MediumCVSS 2.0, NVD
- Exploit chance
- 2.12%EPSS, 82nd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
4.5.19typo3/cms +3 more
Description
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
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 From an advisory covering 5 CVEs | 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 |
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 ListNo 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-2012-3482No 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-xh4gNo 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-xh4gNo 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
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.