CVE-2026-50279

HIGHPre-NVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 84% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.6Exploit: NoneExposed: 0

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

Craft CMS is a content management system (CMS). IN versions 5.0.0-RC1 and above prior to 5.9.21, theEntriesController::actionSaveEntry() performs entry-edit permission checks before request-controlled author changes are applied to the model, allowing for authorship spoofing. The subsequent author mutation path accepts attacker-supplied authors / author parameters and allows the change when the current user is one of the old authors. Because the controller does not re-run authorization after mutating the author list, a low-privileged user can reassign an entry’s authorship to another user without holding the dedicated peer-author-change permission. This issue has been fixed in version 5.9.21.

CVSS v3
7.6
EG Score
7.6(medium)
EPSS
15.7%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jul 3, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Authorship spoofing in `entries/save-entry` via pre-check/post-mutation authorization gap · Advisory · craftcms/cms · GitHub

https://github.com/craftcms/cms/security/advisories/GHSA-qq2c-2q8j-jh27
github_commit Patch Available

commit 9cc493be8b41 (craftcms/cms)

Patch available: craftcms/cms 5.9.21 (contains commit 9cc493be8b41)

https://github.com/craftcms/cms/commit/9cc493be8b414d7116c7f2bc2a6d0926e73f1248

Vendor Advisories for CVE-2026-50279(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 15× 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. 2026-07-07 04:25 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:06 UTCEG score recompute
  4. 2026-07-06 03:48 UTCEG score recompute
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 15:30 UTCEG score recompute
  7. 2026-07-05 03:13 UTCEG score recompute
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 14:55 UTCEG score recompute
  10. 2026-07-04 02:38 UTCEG score recompute
  11. 2026-07-03 14:15 UTCEG score recompute
  12. 2026-07-03 01:56 UTCEG score recompute
  13. 2026-07-02 13:39 UTCEG score recompute
  14. 2026-07-02 01:22 UTCEG score recompute
  15. 2026-07-02 01:21 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-50279?
CVE-2026-50279 is a high vulnerability published on July 2, 2026. Craft CMS is a content management system (CMS). IN versions 5.0.0-RC1 and above prior to 5.9.21, theEntriesController::actionSaveEntry() performs entry-edit permission checks before request-controlled author changes are applied to the model, allowing for authorship spoofing. The subsequent author…
When was CVE-2026-50279 disclosed?
CVE-2026-50279 was first published in the National Vulnerability Database on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50279 actively exploited?
CVE-2026-50279 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-50279?
CVE-2026-50279 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-50279?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50279, 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.

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