Wagtail is an open source content management system built on Django. Prior to versions 6.3.6, 7.0.4, 7.1.3, 7.2.2, and 7.3, due to a missing permission check on the preview endpoints, a user with access to the Wagtail admin and knowledge of a model's fields can craft a form submission to obtain a preview rendering of any page, snippet or site setting object for which previews are enabled, consisting of any data of the user's choosing. The existing data of the object itself is not exposed, but depending on the nature of the template being rendered, this may expose other database contents that would otherwise only be accessible to users with edit access over the model. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. This issue has been patched in versions 6.3.6, 7.0.4, 7.1.3, 7.2.2, and 7.3.
CVE-2026-25517
This low-severity CVE scores 2.7 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 97% 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).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 2.7
- EG Score
- 2.7(medium)
- EPSS
- 26.7%
- KEV
- Not listed
Published
February 4, 2026
Last Modified
February 20, 2026
References (6)
- security-advisories@githubhttps://github.com/wagtail/wagtail/commit/01fd3477365a193e6a8270311defb76e890d2719
- security-advisories@githubhttps://github.com/wagtail/wagtail/commit/5f09b6da61e779b0e8499bdbba52bf2f7bd3241f
- security-advisories@githubhttps://github.com/wagtail/wagtail/commit/73f070dbefbd3b39ea6649ce36bd2d2a6eef2190
- security-advisories@githubhttps://github.com/wagtail/wagtail/commit/7dfe8de5f8b3f112c73c87b6729197db16454915
- security-advisories@githubhttps://github.com/wagtail/wagtail/commit/dd824023a031f1b82a6b6f83a97a5c73391b7c03
- security-advisories@githubhttps://github.com/wagtail/wagtail/security/advisories/GHSA-4qvv-g3vr-m348
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| wagtail | 7.3rc1 | 7.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 52× 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.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-862
Frequently asked(5)
What is CVE-2026-25517?
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What is the CVSS score of CVE-2026-25517?
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Dependency Blast Radius
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