CVE-2026-45011

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-05-14. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
7.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ApostropheCMS is an open-source Node.js content management system. Version 4.29.0 has a stored cross-site scripting vulnerability in the image widget functionality. A user with the Editor role can configure an image widget link to use a javascript: URL payload. Because editors have permission to publish pages, the malicious widget can be published to the live site. When another user, including an administrator or public visitor, clicks the affected image/link, arbitrary JavaScript executes in the victim’s browser. As of time of publication, no known patched versions are available.

CVSS v3
7.3
EG Score
7.3(medium)
EPSS
11.4%
KEV
Not listed

Published

May 14, 2026

Last Modified

June 15, 2026

Advisory Details (1)

Auto-updated Jun 12, 2026
Patch available. Sources: github.
github Patch Available

Stored XSS via javascript: URL in Image Widget Link · Advisory · apostrophecms/apostrophe · GitHub

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-5f64-7vfc-rcx6

Vendor Advisories for CVE-2026-45011(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
npmapostrophe—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
apostrophe4.29.0——

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 59× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 15:16 UTCEPSS rescore
  5. 2026-07-07 13:46 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-01 15:07 UTCEPSS rescore
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-29 21:50 UTCEG score recompute
  13. 2026-06-29 21:50 UTCGHSA enrichment
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 11:43 UTCEG score recompute
  18. 2026-06-28 11:43 UTCGHSA enrichment
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-27 22:38 UTCEG score recompute
  22. 2026-06-27 22:38 UTCGHSA enrichment
  23. 2026-06-27 09:26 UTCEG score recompute
  24. 2026-06-27 09:26 UTCGHSA enrichment
  25. 2026-06-27 03:08 UTCEPSS rescore
Show 34 more
  1. 2026-06-26 20:21 UTCEG score recompute
  2. 2026-06-26 20:21 UTCGHSA enrichment
  3. 2026-06-25 19:14 UTCEG score recompute
  4. 2026-06-25 19:14 UTCGHSA enrichment
  5. 2026-06-25 13:49 UTCEPSS rescore
  6. 2026-06-24 14:05 UTCEPSS rescore
  7. 2026-06-23 21:33 UTCEPSS rescore
  8. 2026-06-22 14:25 UTCEPSS rescore
  9. 2026-06-22 14:25 UTCEPSS rescore
  10. 2026-06-21 14:56 UTCEPSS rescore
  11. 2026-06-21 14:56 UTCEPSS rescore
  12. 2026-06-21 01:59 UTCEPSS rescore
  13. 2026-06-19 19:25 UTCEPSS rescore
  14. 2026-06-18 17:52 UTCEPSS rescore
  15. 2026-06-18 17:52 UTCEPSS rescore
  16. 2026-06-17 17:53 UTCEPSS rescore
  17. 2026-06-17 13:52 UTCEG score recompute
  18. 2026-06-17 13:52 UTCGHSA enrichment
  19. 2026-06-16 22:20 UTCEG score recompute
  20. 2026-06-16 22:20 UTCGHSA enrichment
  21. 2026-06-16 17:52 UTCEPSS rescore
  22. 2026-06-15 23:59 UTCEG score recompute
  23. 2026-06-15 23:59 UTCGHSA enrichment
  24. 2026-06-15 17:49 UTCEPSS rescore
  25. 2026-06-15 01:38 UTCEG score recompute
  26. 2026-06-15 01:38 UTCGHSA enrichment
  27. 2026-06-14 12:33 UTCEG score recompute
  28. 2026-06-14 12:33 UTCGHSA enrichment
  29. 2026-06-13 23:29 UTCEG score recompute
  30. 2026-06-13 23:29 UTCGHSA enrichment
  31. 2026-06-13 23:00 UTCEPSS rescore
  32. 2026-06-12 23:12 UTCEPSS rescore
  33. 2026-06-12 22:11 UTCEG score recompute
  34. 2026-06-12 22:11 UTCGHSA enrichment

Related CVEs(same product + same CWE)

Same product

2 shown

npm:apostrophe

Frequently asked(5)

What is CVE-2026-45011?
CVE-2026-45011 is a high vulnerability published on May 14, 2026. ApostropheCMS is an open-source Node.js content management system. Version 4.29.0 has a stored cross-site scripting vulnerability in the image widget functionality. A user with the Editor role can configure an image widget link to use a javascript: URL payload. Because editors have permission to…
When was CVE-2026-45011 disclosed?
CVE-2026-45011 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45011 actively exploited?
CVE-2026-45011 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45011?
CVE-2026-45011 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-45011?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45011, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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