CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCVE-2026-123820 wagtail wagtail
Medium (5.3) in wagtail wagtail. EPSS 0.3% estimated probability of exploitation activity in the next 30 days. Fixed in wagtail 7.0.9, 7.3.4, 7.4.3.
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Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.
Severity
- EPSS
- 0.3% estimated probability of exploitation activity in the next 30 days; 23rd percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: yes · Technical impact: partial, assessed 2026-11-10. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-280 Improper Handling of Insufficient Permissions or Privileges
- OWASP Top 10
- A10:2025 Mishandling of Exceptional Conditions
- Published
- Modified
- Assigned by
- GitHub_M (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Explain CVE-2026-123820 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-123820?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-123820?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-123820 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| wagtail | < 7.0.9 |
| wagtail | >= 7.1, < 7.3.4 |
| wagtail | >= 7.4, < 7.4.3 |
| wagtail | = 8.0rc1 |
Fix and patched versions
wagtail(PyPI): fixed in 7.0.9, 7.3.4, 7.4.3, 8.0rc2
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-c2xx-cjmh-9q8f | PyPI | wagtail | <7.0.9 | 7.0.9 |
| GHSA-c2xx-cjmh-9q8f | PyPI | wagtail | >=7.1 <7.3.4 | 7.3.4 |
| GHSA-c2xx-cjmh-9q8f | PyPI | wagtail | >=7.4 <7.4.3 | 7.4.3 |
| GHSA-c2xx-cjmh-9q8f | PyPI | wagtail | >=8.0rc1 <8.0rc2 | 8.0rc2 |
References
- https://github.com/wagtail/wagtail/commit/320c37ed4624702d3864ce2364ce8536b2ce5115
- https://github.com/wagtail/wagtail/commit/9a69e0ad153c515ddd86ddd33d2c9d2554201568
- https://github.com/wagtail/wagtail/commit/b8a2040dfcdb97498b746254ad8bb4e47e21358c
- https://github.com/wagtail/wagtail/commit/cba80389067121c0fae41a3312e2daf76f0eb206
- https://github.com/wagtail/wagtail/releases/tag/v7.0.9
- https://github.com/wagtail/wagtail/releases/tag/v7.3.4
- https://github.com/wagtail/wagtail/releases/tag/v7.4.3
- https://github.com/wagtail/wagtail/releases/tag/v8.0rc2
- https://github.com/wagtail/wagtail/security/advisories/GHSA-c2xx-cjmh-9q8f