How severe is CVE-2026-30235?

CVE-2026-30235 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-30235 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-30235?

CVE-2026-30235 affects Openproject. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-30235?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-30235 have an EU (EUVD) identifier?

Yes. CVE-2026-30235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11235.

When was CVE-2026-30235 published?

CVE-2026-30235 was published on 2026-03-11 and last updated on 2026-06-17.

CVE-2026-30235

CVE-2026-30235 is a medium-severity vulnerability in Openproject with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-11235
Weakness: CWE-79
Affected product: Openproject
Published: 2026-03-11
Last modified: 2026-06-17

Description

OpenProject is an open-source, web-based project management software. Prior to 17.2.0, this vulnerability occurs due to improper validation of OpenProject’s Markdown rendering, specifically in the hyperlink handling. This allows an attacker to inject malicious hyperlink payloads that perform DOM clobbering. DOM clobbering can crash or blank the entire page by overwriting native DOM functions with HTML elements, causing critical JavaScript calls to throw runtime errors during application initialization and halt further execution. This vulnerability is fixed in 17.2.0.

Frequently asked questions

What is CVE-2026-30235?: OpenProject is an open-source, web-based project management software. Prior to 17.2.0, this vulnerability occurs due to improper validation of OpenProject’s Markdown rendering, specifically in the hyperlink handling. This allows an attacker to inject malicious hyperlink payloads that perform DOM clobbering. DOM clobbering can crash or blank the entire page by overwriting native DOM functions with HTML elements, causing critical JavaScript calls to throw runtime errors during application initialization and halt further execution. This vulnerability is fixed in 17.2.0.
How severe is CVE-2026-30235?: CVE-2026-30235 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-30235 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-30235?: CVE-2026-30235 affects Openproject. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-30235?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-30235 have an EU (EUVD) identifier?: Yes. CVE-2026-30235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11235.
When was CVE-2026-30235 published?: CVE-2026-30235 was published on 2026-03-11 and last updated on 2026-06-17.

References

https://github.com/opf/openproject/security/advisories/GHSA-9rv2-9xv5-gpq8

Affected products (1)

cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:*

More vulnerabilities in Openproject

CVE-2026-34717 — Critical (CVSS 9.9): OpenProject is an open-source, web-based project management software. Prior to version 17.2.3, the =n operator in…
CVE-2026-25763 — Critical (CVSS 9.9): OpenProject is an open-source, web-based project management software. Prior to versions 16.6.7 and 17.0.3, an arbitrary…
CVE-2026-32698 — Critical (CVSS 9.1): OpenProject is an open-source, web-based project management software. Versions prior to 16.6.9, 17.0.6, 17.1.3, and…
CVE-2026-22600 — Critical (CVSS 9.1): OpenProject is an open-source, web-based project management software. A Local File Read (LFR) vulnerability exists in…
CVE-2026-32703 — Critical (CVSS 9.0): OpenProject is an open-source, web-based project management software. In versions prior to 16.6.9, 17.0.6, 17.1.3, and…
CVE-2026-24772 — High (CVSS 8.9): OpenProject is an open-source, web-based project management software. To enable the real time collaboration on…

All CVEs affecting Openproject →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →