CVE-2026-32703

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

Published Mar 18, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

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.

Analysis

Technical impact

OpenProject’s Repositories module did not properly escape filenames supplied by the repository. An attacker with push access can commit a file whose name contains HTML code that is rendered on the repositories page without sanitation. This results in a persisted cross‑site scripting (XSS) vulnerability that can execute arbitrary JavaScript in the browsers of all project members who view the affected page.

Affected Systems

Affected deployments are those running OpenProject versions before 16.6.9, before 17.0.6, before 17.1.3, or before 17.2.1. The product is identified by the vendor identifier opf:openproject and the CPE strings cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:* and cpe:2.3:a:openproject:openproject:17.2.0:*:*:*:*:*:*:*; any instance matching those version ranges is vulnerable.

Risk and Exploitability

The CVSS score of 9.1 categorises this flaw as high severity, yet the EPSS score is below 1 % and it is not listed in CISA’s KEV catalog. The vulnerability requires the attacker to possess push rights to the repository; after a malicious commit, any project member who accesses the repositories page will have the injected script executed. The potential impact is confined to the victim’s browser and does not require additional conditions beyond repository access.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

opf

openproject

affected

Version	Status	Constraints
`< 16.6.9`	affected	—
`>= 17.0.0, < 17.0.6`	affected	—
`>= 17.1.0, < 17.1.3`	affected	—
`>= 17.2.0, < 17.2.1`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:openproject:openproject::::::::
	cpe:2.3:a:openproject:openproject::::::::
	cpe:2.3:a:openproject:openproject::::::::
	cpe:2.3:a:openproject:openproject:17.2.0:::::::*

No data.

Vendor Product Versions

Opf

Openproject

Version	Status	Scheme	Platform
`[0,16.6.9)`	affected	semver	—
`[17.0.0,17.0.6)`	affected	semver	—
`[17.1.0,17.1.3)`	affected	semver	—
`[17.2.0,17.2.1)`	affected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade OpenProject to at least version 16.6.9, 17.0.6, 17.1.3, or 17.2.1.
Verify that repository filenames are properly escaped in the UI after applying the patch.
Monitor repository commits for any unexpected or malicious filenames.

Generated by OpenCVE AI on March 19, 2026 at 20:50 UTC.

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.220% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://github.com/opf/openproject/security/advisories/GHSA-p423-72h4-fjvp

History

Mar 19, 2026 7:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Openproject Openproject openproject
CPEs		cpe:2.3:a:openproject:openproject:::::::: cpe:2.3:a:openproject:openproject:17.2.0:::::::*
Vendors & Products		Openproject Openproject openproject

Mar 19, 2026 5:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Mar 19, 2026 9:45 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Opf Opf openproject
Vendors & Products		Opf Opf openproject

Mar 18, 2026 9:30 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Title		OpenProject's repository files are served with the MIME type allowing them to be used to bypass Content Security Policy
Weaknesses		CWE-79
References		https://github.com/opf/openproject/security/advisories/GHSA-p423-72h4-fjvp
Metrics		cvssV3_1 `{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}`