How severe is CVE-2026-45014?

CVE-2026-45014 has a CVSS 4.0 base score of 5.3, rated medium severity.

Is CVE-2026-45014 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-45014?

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

Does CVE-2026-45014 have an EU (EUVD) identifier?

Yes. CVE-2026-45014 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36573.

When was CVE-2026-45014 published?

CVE-2026-45014 was published on 2026-06-12 and last updated on 2026-06-17.

CVE-2026-45014

CVE-2026-45014 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.3. 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 4.0 base score 5.3)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36573
Weakness: CWE-79
Published: 2026-06-12
Last modified: 2026-06-17

Description

ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 are vulnerable to stored cross-site scripting via unsanitized user display name in draft version tooltip. As of time of publication, no known patched versions are available.

Frequently asked questions

What is CVE-2026-45014?: ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 are vulnerable to stored cross-site scripting via unsanitized user display name in draft version tooltip. As of time of publication, no known patched versions are available.
How severe is CVE-2026-45014?: CVE-2026-45014 has a CVSS 4.0 base score of 5.3, rated medium severity.
Is CVE-2026-45014 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-45014?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-45014 have an EU (EUVD) identifier?: Yes. CVE-2026-45014 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36573.
When was CVE-2026-45014 published?: CVE-2026-45014 was published on 2026-06-12 and last updated on 2026-06-17.

References

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-hvx2-4ghc-j37m

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