CVE-2012-0958

content/unity-api.js in the unity-firefox-extension extension 2.4.1 for Firefox exposes the toDataURL function in an API call, which allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted webpage.

Published: 2012-12-26 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-0958 is rated Moderate Risk (43.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.58%). EPSS rose +1.26% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-0958

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.32% 1.58% +1.26%
2 2025-03-30 0.51% 0.32% -0.19%
3 2025-03-29 — 0.51% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-0958

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2012-0958

OS Trackers for CVE-2012-0958

vendor priority summary link
ubuntu medium CVE-2012-0958 medium priority: Ubuntu including 1 source packages (unity-firefox-extension), 6 status rows across 6 suites (hardy, lucid, oneiric, precise, quantal, upstream): DNE 4, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2012-0958

Affected software / configurations for CVE-2012-0958

Vendor Product Version Raw CPE
ps_project_management_team unity-firefox-extension 2.4.1 cpe:2.3:a:ps_project_management_team:unity-firefox-extension:2.4.1:-:*:*:*:firefox:*:*

References for CVE-2012-0958

cvelogic Threat Intelligence