Security readout for executives and security teams
Plain-English summary
CVE-2021-32621 lets an authenticated XWiki user without script privileges run privileged script through dashboard gadget titles. For an organization using affected XWiki versions, this can undermine confidentiality, integrity, and availability of the wiki platform.
Executive priority
High priority for any affected XWiki deployment with multiple or externally managed user accounts. Patch promptly because the vulnerability turns ordinary authenticated access into privileged code execution inside the wiki platform.
Technical view
Affected XWiki Platform versions before 12.6.7 and 12.10.0 through 12.10.2 improperly handled gadget titles, enabling script injection and privileged script execution. The CVSS 3.1 score is 8.8 with network access, low complexity, low privileges, and no user interaction.
Likely exposure
Exposure is limited to XWiki Platform deployments running vulnerable versions where authenticated users can edit dashboard gadget titles. Publicly reachable wikis with broad account access carry higher operational risk.
Exploitation context
The source bundle includes a public third-party write-up, but KEV is false and the supplied sources do not establish active exploitation. Treat exploitability as practical for authenticated users, not proven active in the wild.
Researcher notes
The vulnerability is CWE-94 script/code injection in dashboard gadget title handling. Evidence supports patched versions and affected ranges, but the supplied bundle does not provide verified active exploitation or broader product impact.
Mitigation direction
- Upgrade XWiki to 12.6.7, 12.10.3, 13.0RC1, or later supported versions.
- Prioritize systems where untrusted authenticated users can edit dashboards or gadget titles.
- Review the XWiki advisory before applying any constrained backport or temporary control.
- Limit dashboard editing access until patched, if business operations allow.
Validation and detection
- Inventory XWiki Platform versions across production, staging, and internet-facing environments.
- Flag versions before 12.6.7 and 12.10.0 through 12.10.2 as vulnerable.
- Confirm whether low-privilege users can edit dashboard gadget titles.
- Review dashboard page history for unexpected gadget title changes.
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-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. 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-2021-32621 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
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h353-hc43-95vcCVE reference · x_refsource_CONFIRM
- https://jira.xwiki.org/browse/XWIKI-17794CVE reference · x_refsource_MISC
- https://github.com/xwiki/xwiki-platform/commit/bb7068bd911f91e5511f3cfb03276c7ac81100bcCVE reference · x_refsource_MISC
- https://jay-from-future.github.io/cve/2021/06/17/xwiki-rce-cve.htmlCVE 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.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.