How severe is CVE-2012-4257?

CVE-2012-4257 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-4257 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4257?

CVE-2012-4257 affects George Karpouzas Yet Another Question & Answer System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-4257?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-4257 published?

CVE-2012-4257 was published on 2012-08-13 and last updated on 2026-06-16.

CVE-2012-4257

CVE-2012-4257 is a medium-severity vulnerability in George Karpouzas Yet Another Question & Answer System with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: George Karpouzas Yet Another Question & Answer System
Published: 2012-08-13
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2012-4257?: 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.
How severe is CVE-2012-4257?: CVE-2012-4257 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-4257 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4257?: CVE-2012-4257 affects George Karpouzas Yet Another Question & Answer System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-4257?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4257 published?: CVE-2012-4257 was published on 2012-08-13 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:george_karpouzas:yet_another_question_\&_answer_system:1.0:alpha1:*:*:*:*:*:*

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →