Security readout for executives and security teams
Plain-English summary
A MediaWiki site using the DataDump extension before commit 67a82b76 could let a malicious site trick a user’s browser into generating or deleting wiki dumps. The issue requires user interaction, but dumps may expose sensitive wiki content. Only deployments using this extension are in scope.
Executive priority
Treat this as a targeted medium-priority issue. It is not listed as actively exploited, but organizations using DataDump should update or disable it because forged requests could expose sensitive wiki dump data.
Technical view
CVE-2021-32774 is a CWE-352 CSRF flaw in Miraheze DataDump. Before commit 67a82b76e186925330b89ace9c5fd893a300830b, generate and delete dump requests lacked CSRF protection. CVSS 3.1 is 6.1, with network attack vector, high complexity, required user interaction, changed scope, and high confidentiality impact.
Likely exposure
Exposure is likely limited to MediaWiki installations that have the Miraheze DataDump extension enabled and are running code older than commit 67a82b76e186925330b89ace9c5fd893a300830b.
Exploitation context
The source bundle does not cite active exploitation, and CISA KEV status is false. Exploitation would require inducing a relevant user interaction that causes a forged browser request against an affected wiki.
Researcher notes
Evidence supports a CSRF weakness and a specific fixing commit, but the bundle does not provide product release numbers, exploit evidence, or alternate mitigations. Avoid assuming broader MediaWiki impact beyond DataDump.
Mitigation direction
- Update DataDump to include commit 67a82b76e186925330b89ace9c5fd893a300830b.
- If unable to update, completely disable DataDump as the advisory states.
- Review vendor guidance before re-enabling the extension.
- Prioritize wikis where dumps contain private or sensitive content.
Validation and detection
- Inventory MediaWiki instances for the DataDump extension.
- Confirm the deployed DataDump code includes the fixed commit.
- Check whether DataDump is enabled on public or private wikis.
- Review dump generation and deletion history for unexpected activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-352: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-32774 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N1.64Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/miraheze/DataDump/security/advisories/GHSA-29mh-4vhv-x8mrCVE reference · x_refsource_CONFIRM
- https://github.com/miraheze/DataDump/commit/67a82b76e186925330b89ace9c5fd893a300830bCVE reference · x_refsource_MISC
- https://phabricator.miraheze.org/T7593CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.