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CVE-2026-32703OpenProject's repository files are served with the MIME type allowing them to be used to bypass Content Security Policy

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.

Timeline

  1. ID reserved

    By GitHub_M

  2. · 5 days later

    Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-32703, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1Critical9.1CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVDNVD · Analyzed3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.22% · top 87% of all CVEs (13 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.

Affected products

  • opf · openproject

    • affected < 16.6.9
    • affected >= 17.0.0, < 17.0.6
    • affected >= 17.1.0, < 17.1.3
    • affected >= 17.2.0, < 17.2.1

References

References1

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .