What is CVE-2020-9344?

CVE-2020-9344 is a medium-severity vulnerability in Atlassian Subversion Application Lifecycle Management, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-03-20.

How severe is CVE-2020-9344?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2020-9344 known to be exploited?

10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Atlassian Subversion Application Lifecycle Management

CVE-2020-9344

Subversion ALM for the enterprise before 8.8.2 allows reflected XSS at multiple locations.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-03-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.052 (92.2th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.052 · newest: 0.052 · change: 0.000

Affected products

Atlassian Subversion Application Lifecycle Management

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

kintosoft.atlassian.net/wiki/spaces/SVNALM/pages/753565697/Security+Bulletin (Vendor Advisory)
www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-007.txt (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-9344?: CVE-2020-9344 is a medium-severity vulnerability in Atlassian Subversion Application Lifecycle Management, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-03-20.
How severe is CVE-2020-9344?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-9344 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.