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CVE-2012-3527

17
FAUCET Score

CVE-2012-3527 is a critical vulnerability affecting TYPO3 versions 4.5.x, 4.6.x, and 4.7.x, where a missing signature (HMAC) in view_help.php allows remote authenticated backend users to unserialize arbitrary objects. This could lead to the execution of arbitrary PHP code, resulting in potential compromise of confidentiality, integrity, and availability. With a CVSS score of 4.6, it requires authenticated access and high attack complexity, but the potential impact is significant. There is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.5.0, < 4.5.19CPE matchmatch criteria
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
>= 4.6.0, < 4.6.12CPE matchmatch criteria
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
>= 4.7.0, < 4.7.4CPE matchmatch criteria
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

AV:N/AC:H/Au:S/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
SINGLE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.12%
Probability of exploitation in next 30 days
EPSS Percentile
79.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0212 is in the 87th percentile among its peer group of 1,425 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: typo3/cmsFixed in: 4.5.19
composerpatch availablevia ghsa
Product: typo3/cmsFixed in: 4.6.12
composerpatch availablevia ghsa
Product: typo3/cmsFixed in: 4.7.4

Vendor Advisories (1)

composerGHSA-m4hw-r893-xh4gmedium

TYPO3 allows remote authenticated backend users to unserialize arbitrary objects

May 17, 2022

References

osvdb.org / 84773
Broken Link
secunia.com / advisories/50287
Not Applicable
exchange.xforce.ibmcloud.com / vulnerabilities/77791
Third Party AdvisoryVDB Entry
typo3.org / teams/security/security-bulletins/typo3-core/typo3-core-sa-2012-004
Vendor Advisory
debian.org / security/2012/dsa-2537
Third Party Advisory
openwall.com / lists/oss-security/2012/08/22/8
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