What is CVE-2023-31779?

CVE-2023-31779 is a medium-severity vulnerability in Wekan Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-05-22.

How severe is CVE-2023-31779?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2023-31779 known to be exploited?

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

XSS in Wekan Project

CVE-2023-31779

Wekan v6.84 and earlier is vulnerable to Cross Site Scripting (XSS). An attacker with user privilege on kanban board can insert JavaScript code in in "Reaction to comment" feature.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-05-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Wekan Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/wekan/wekan/blob/master/CHANGELOG.md (Release Notes)
github.com/wekan/wekan/commit/47ac33d6c234359c31d9b5eae49ed3e793907279 (Patch)

Frequently asked questions

What is CVE-2023-31779?: CVE-2023-31779 is a medium-severity vulnerability in Wekan Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-05-22.
How severe is CVE-2023-31779?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2023-31779 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.