CVE-2026-32703

OpenProject's repository files are served with the MIME type allowing them to be used to bypass Content Security Policy

MEDIUM
5.4
CVSS Score
Published: March 18, 2026 at 09:04 PM UTC
Updated: June 17, 2026 at 10:36 AM UTC
2 products affected across 2 vendorsOpenprojectOpenproject

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

OpenProject is an open-source, web-based project management software. In versions prior to 16.6.9, 17.0.6, 17.1.3, and 17.2.1, the Repositories module did not properly escape filenames displayed from repositories. This allowed an attacker with push access into the repository to create commits with filenames that included HTML code that was injected in the page without proper sanitation. This allowed a persisted XSS attack against all members of this project that accessed the repositories page to display a changeset where the maliciously crafted file was deleted. Versions 16.6.9, 17.0.6, 17.1.3, and 17.2.1 fix the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 16.6.917.0.0 ≤ v < 17.0.617.1.0 ≤ v < 17.1.317.2.0
v < 16.6.9v < 17.0.6v < 17.1.3v < 17.2.1
Affected range stops below 16.6.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.0.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.1.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.2.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/opf/openproject/security/advisories/GHSA-p423-72h4-fjvp

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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