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Wagtail: Identification of documents by SHA1 hash

3.7LowCNA
Exploited
No known exploitation
Fix
Fixed in 7.0.9, 7.3.4, 7.4.3
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 7.0.9, 7.3.4, 7.4.3.

Published
Last modified
21/100 · provisional
None on Exploit-DB, Metasploit or GitHub

Summary

Wagtail, an open source content management system built on Django, can leak whether a given SHA1 hash matches a document in its library. An attacker can reach this remotely without logging in, but only if they already know the document ID and the candidate hash.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

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, Wagtail applies ETag conditional request processing to the document serve endpoint before document permission and filename checks complete. An unauthenticated attacker who knows a document ID and a candidate SHA1 hash can submit If-Match or If-None-Match and distinguish the response, revealing whether that hash is present in the document library. The issue does not expose document contents, filenames, other metadata, or information about hashes the attacker does not already know. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.

cve.now Index

21Pcve.now Index 21 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure17/25No login or user action needed per the CVSS vector, reachable over the network without a login · Unknown: No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity3.7/10CVSS 3.7
  • No patch0/5No signal

What would change the score

  • Would score about 66 if added to CISA KEV
  • Would score about 61 if CISA's SSVC rates exploitation active
  • Would score about 26 if advisories confirm default setups are exposed

What to do

  • Upgrade to a fixed version: 7.0.9, 7.3.4, 7.4.3.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • wagtail wagtail

    fixed in 7.0.9; From 7.1 · fixed in 7.3.4; From 7.4 · fixed in 7.4.3

Evidence 9

  1. Advisory
  2. Repository
  3. Repository
  4. Repository
  5. Repository
Show all 9 sourcesShow fewer sources
  1. Repository
  2. Repository
  3. Repository
  4. Repository

Corrections

None so far.

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Questions about CVE-2026-125105

Is CVE-2026-125105 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-125105?

wagtail: before 7.0.9; from 7.1 before 7.3.4; from 7.4 before 7.4.3.Source: cve.now feed data

How do I fix CVE-2026-125105?

Upgrade to a fixed version: 7.0.9, 7.3.4, 7.4.3.Source: cve.now feed data