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Fencer Intel
medium 5.0

CVE-2012-4257 json

Yaqas (Yet Another Question & Answer System) 1.0 Alpha 1 allows remote attackers to obtain sensitive information via an invalid character i…

published 2012-08-13 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4201

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

Yaqas (Yet Another Question & Answer System) 1.0 Alpha 1 allows remote attackers to obtain sensitive information via an invalid character in the PHPSESSID, which reveals the installation path in an error message.

Exploit prediction

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • packetstormsecurity.org http://packetstormsecurity.org/files/112248/Yaqas-CMS-Alpha1-Information-Disclosure.html referenced PoC, tagged "exploit" by a source, unverified
  • hauntit.blogspot.com http://hauntit.blogspot.com/2012/03/en-yaqas-cms-alpha1-information.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.