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.
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.
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)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| 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 |
| 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:*:*:*:*:*:*:* |