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CVE-2023-33960

33
FAUCET Score

CVE-2023-33960 is a high-severity information disclosure vulnerability affecting OpenProject versions prior to 12.5.6. It allows unauthenticated attackers to access project identifiers of all public projects via the publicly available /robots.txt file, even when the instance requires login. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network with no user interaction, potentially leading to a complete compromise of confidentiality. While there is no evidence of active exploitation or public exploit code, a Nuclei template exists, and the vulnerability has a high FAUCET Risk Score, indicating its potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.5.6CPE matchmatch criteria
cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2023-33960 · Jan 13, 2026
This CVE's current EPSS score of 0.0127 is in the 46th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

community.openproject.org / wp/48324
Permissions Required
github.com / opf/openproject/pull/12708
Patch
github.com / opf/openproject/releases/tag/v12.5.6
Release Notes
github.com / opf/openproject/security/advisories/GHSA-xjfc-fqm3-95q8
Vendor Advisory
patch-diff.githubusercontent.com / raw/opf/openproject/pull/12708.patch
Mailing ListPatch