UpHeron
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Servers and applications

CVE-2012-3527

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)."

Severity
Medium 4.6
Published
5 Sept 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.5.19, 4.6.12, 4.7.4
Exploit chance
2.1% in the next 30 daysHigher than 82% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Deserialization of untrusted data (CWE-502)
Attack
Over the network · Only under certain conditions · Needs a login
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:H/Au:S/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
TYPO3Servers and applications · cpe:a:typo3:typo3
  • From 4.5.0 before 4.5.19
  • From 4.6.0 before 4.6.12
  • From 4.7.0 before 4.7.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-3527
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-3527