CVE-2009-0934

Cross-site scripting (XSS) vulnerability in ejabberd before 2.0.4 allows remote attackers to inject arbitrary web script or HTML via unknown vectors related to links and MUC logs.

Published: 2009-03-18 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-0934 is rated Moderate Risk (41.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.72%). 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-2009-0934

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 2025-03-30 1.35% 0.72% -0.63%
2 2025-03-29 0.72% 1.35% +0.63%
3 2025-03-17 0.72%

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-0934

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-2009-0934

OS Trackers for CVE-2009-0934

vendor priority summary link
debian not yet assigned CVE-2009-0934 not yet assigned priority: Debian including 1 source packages (ejabberd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-0934
redhat medium https://access.redhat.com/security/cve/CVE-2009-0934
ubuntu low CVE-2009-0934 low priority: Ubuntu including 1 source packages (ejabberd), 11 status rows across 11 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): ignored 5, not-affected 5, released 1. https://ubuntu.com/security/CVE-2009-0934

Affected software / configurations for CVE-2009-0934

Vendor Product Version Raw CPE
process-one ejabberd <= 2.0.3 cpe:2.3:a:process-one:ejabberd:*:*:*:*:*:*:*:*
process-one ejabberd 0.9 cpe:2.3:a:process-one:ejabberd:0.9:*:*:*:*:*:*:*
process-one ejabberd 0.9.1 cpe:2.3:a:process-one:ejabberd:0.9.1:*:*:*:*:*:*:*
process-one ejabberd 0.9.8 cpe:2.3:a:process-one:ejabberd:0.9.8:*:*:*:*:*:*:*
process-one ejabberd 1.0.0 cpe:2.3:a:process-one:ejabberd:1.0.0:*:*:*:*:*:*:*
process-one ejabberd 1.1.0 cpe:2.3:a:process-one:ejabberd:1.1.0:*:*:*:*:*:*:*
process-one ejabberd 1.1.1 cpe:2.3:a:process-one:ejabberd:1.1.1:*:*:*:*:*:*:*
process-one ejabberd 1.1.1.0 cpe:2.3:a:process-one:ejabberd:1.1.1.0:*:*:*:*:*:*:*
process-one ejabberd 1.1.1.1 cpe:2.3:a:process-one:ejabberd:1.1.1.1:*:*:*:*:*:*:*
process-one ejabberd 1.1.2 cpe:2.3:a:process-one:ejabberd:1.1.2:*:*:*:*:*:*:*
process-one ejabberd 1.1.3 cpe:2.3:a:process-one:ejabberd:1.1.3:*:*:*:*:*:*:*
process-one ejabberd 1.1.14 cpe:2.3:a:process-one:ejabberd:1.1.14:*:*:*:*:*:*:*
process-one ejabberd 2.0.0 cpe:2.3:a:process-one:ejabberd:2.0.0:*:*:*:*:*:*:*
process-one ejabberd 2.0.0 cpe:2.3:a:process-one:ejabberd:2.0.0:beta1:*:*:*:*:*:*
process-one ejabberd 2.0.0 cpe:2.3:a:process-one:ejabberd:2.0.0:rc1:*:*:*:*:*:*
process-one ejabberd 2.0.1_2 cpe:2.3:a:process-one:ejabberd:2.0.1_2:*:*:*:*:*:*:*
process-one ejabberd 2.0.2 cpe:2.3:a:process-one:ejabberd:2.0.2:*:*:*:*:*:*:*

References for CVE-2009-0934

cvelogic Threat Intelligence