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CVE-2023-33961

19
FAUCET Score

CVE-2023-33961 is a cross-site scripting (XSS) vulnerability affecting Leantime, an open-source project management system, starting from version 2.3.21. An authenticated user with commenting privileges can inject malicious JavaScript into comments, which then executes when viewed by other users. This medium-severity vulnerability (CVSS 5.4) has a low attack complexity and requires user interaction, potentially leading to limited impact on confidentiality and integrity. Currently, there is no known patch, active exploitation, or publicly available exploit code, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.3.21CPE matchmatch criteria
cpe:2.3:a:leantime:leantime:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.9HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
32.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 48th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

github.com / Leantime/leantime/security/advisories/GHSA-359m-fp6q-65r7
Vendor Advisory