CVE-2012-5883

Cross-site scripting (XSS) vulnerability in the Flash component infrastructure in YUI 2.8.0 through 2.9.0, as used in Bugzilla 3.7.x and 4.0.x before 4.0.9, 4.1.x and 4.2.x before 4.2.4, and 4.3.x and 4.4.x before 4.4rc1, allows remote attackers to inject arbitrary web script or HTML via vectors related to swfstore.swf, a similar issue to CVE-2010-4209.

Published: 2012-11-16 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2012-5883 is rated Moderate Risk (41.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.63%). Mandatory action: 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-2012-5883

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 2026-03-04 0.43% 0.63% +0.20%
2 2026-03-01 0.63% 0.43% -0.20%
3 2026-02-13 0.63%

Full EPSS history (32 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-5883

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:N/I:P/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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2012-5883

OS Trackers for CVE-2012-5883

vendor priority summary link
ubuntu medium CVE-2012-5883 medium priority: Ubuntu including 2 source packages (maas, yui), 38 status rows across 19 suites (artful, bionic, cosmic, disco, hardy, lucid, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 16, DNE 11, ignored 10, needs-triage 1. https://ubuntu.com/security/CVE-2012-5883

Affected software / configurations for CVE-2012-5883

Vendor Product Version Raw CPE
mozilla bugzilla 3.7 cpe:2.3:a:mozilla:bugzilla:3.7:*:*:*:*:*:*:*
mozilla bugzilla 3.7.1 cpe:2.3:a:mozilla:bugzilla:3.7.1:*:*:*:*:*:*:*
mozilla bugzilla 3.7.2 cpe:2.3:a:mozilla:bugzilla:3.7.2:*:*:*:*:*:*:*
mozilla bugzilla 3.7.3 cpe:2.3:a:mozilla:bugzilla:3.7.3:*:*:*:*:*:*:*
mozilla bugzilla 4.0 cpe:2.3:a:mozilla:bugzilla:4.0:*:*:*:*:*:*:*
mozilla bugzilla 4.0 cpe:2.3:a:mozilla:bugzilla:4.0:rc1:*:*:*:*:*:*
mozilla bugzilla 4.0 cpe:2.3:a:mozilla:bugzilla:4.0:rc2:*:*:*:*:*:*
mozilla bugzilla 4.0.1 cpe:2.3:a:mozilla:bugzilla:4.0.1:*:*:*:*:*:*:*
mozilla bugzilla 4.0.2 cpe:2.3:a:mozilla:bugzilla:4.0.2:*:*:*:*:*:*:*
mozilla bugzilla 4.0.3 cpe:2.3:a:mozilla:bugzilla:4.0.3:*:*:*:*:*:*:*
mozilla bugzilla 4.0.4 cpe:2.3:a:mozilla:bugzilla:4.0.4:*:*:*:*:*:*:*
mozilla bugzilla 4.0.5 cpe:2.3:a:mozilla:bugzilla:4.0.5:*:*:*:*:*:*:*
mozilla bugzilla 4.0.6 cpe:2.3:a:mozilla:bugzilla:4.0.6:*:*:*:*:*:*:*
mozilla bugzilla 4.0.7 cpe:2.3:a:mozilla:bugzilla:4.0.7:*:*:*:*:*:*:*
mozilla bugzilla 4.0.8 cpe:2.3:a:mozilla:bugzilla:4.0.8:*:*:*:*:*:*:*
mozilla bugzilla 4.1 cpe:2.3:a:mozilla:bugzilla:4.1:*:*:*:*:*:*:*
mozilla bugzilla 4.1.1 cpe:2.3:a:mozilla:bugzilla:4.1.1:*:*:*:*:*:*:*
mozilla bugzilla 4.1.2 cpe:2.3:a:mozilla:bugzilla:4.1.2:*:*:*:*:*:*:*
mozilla bugzilla 4.1.3 cpe:2.3:a:mozilla:bugzilla:4.1.3:*:*:*:*:*:*:*
mozilla bugzilla 4.2 cpe:2.3:a:mozilla:bugzilla:4.2:*:*:*:*:*:*:*
mozilla bugzilla 4.2 cpe:2.3:a:mozilla:bugzilla:4.2:rc1:*:*:*:*:*:*
mozilla bugzilla 4.2 cpe:2.3:a:mozilla:bugzilla:4.2:rc2:*:*:*:*:*:*
mozilla bugzilla 4.2.1 cpe:2.3:a:mozilla:bugzilla:4.2.1:*:*:*:*:*:*:*
mozilla bugzilla 4.2.2 cpe:2.3:a:mozilla:bugzilla:4.2.2:*:*:*:*:*:*:*
mozilla bugzilla 4.2.3 cpe:2.3:a:mozilla:bugzilla:4.2.3:*:*:*:*:*:*:*
mozilla bugzilla 4.3 cpe:2.3:a:mozilla:bugzilla:4.3:*:*:*:*:*:*:*
mozilla bugzilla 4.3.1 cpe:2.3:a:mozilla:bugzilla:4.3.1:*:*:*:*:*:*:*
mozilla bugzilla 4.3.2 cpe:2.3:a:mozilla:bugzilla:4.3.2:*:*:*:*:*:*:*
mozilla bugzilla 4.3.3 cpe:2.3:a:mozilla:bugzilla:4.3.3:*:*:*:*:*:*:*
yahoo yui 2.8.0 cpe:2.3:a:yahoo:yui:2.8.0:*:*:*:*:*:*:*
yahoo yui 2.8.1 cpe:2.3:a:yahoo:yui:2.8.1:*:*:*:*:*:*:*
yahoo yui 2.8.1 cpe:2.3:a:yahoo:yui:2.8.1:pr1:*:*:*:*:*:*
yahoo yui 2.8.2 cpe:2.3:a:yahoo:yui:2.8.2:*:*:*:*:*:*:*
yahoo yui 2.9.0 cpe:2.3:a:yahoo:yui:2.9.0:*:*:*:*:*:*:*
yahoo yui 2.9.0 cpe:2.3:a:yahoo:yui:2.9.0:pr2:*:*:*:*:*:*
yahoo yui 2.9.0 cpe:2.3:a:yahoo:yui:2.9.0:pr4:*:*:*:*:*:*

References for CVE-2012-5883

cvelogic Threat Intelligence