Security readout for executives and security teams
Plain-English summary
This is a medium-severity reflected cross-site scripting issue in GTranslate Pro and Enterprise for WordPress before 2.8.65. A public page could echo a crafted request URI back into the page. Practical abuse appears constrained because the record cites older or atypical browsers, network request modification, and user interaction.
Executive priority
Treat as a normal patching item unless exposed sites use affected Pro or Enterprise versions. The business risk is session or content manipulation through browser-based script execution, but exploitation conditions are narrower than many XSS issues.
Technical view
The vulnerable gtranslate_request_uri_var function runs on all pages and echoes $_SERVER['REQUEST_URI'] with addslashes rather than context-appropriate output encoding. The CVE maps this to CWE-116. CVSS 3.1 is 5.0 with network access, high attack complexity, no privileges, and required user interaction.
Likely exposure
Exposure is likely limited to WordPress sites running GTranslate Pro or GTranslate Enterprise versions before 2.8.65. Public-facing pages are relevant because the vulnerable function runs at the top of all pages. Free plugin exposure is not established by the bundle.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation. The described attack depends on user interaction and less common conditions, including Internet Explorer 9 or below, atypical browsers, or request modification between client and server.
Researcher notes
The strongest evidence is the CVE description and the referenced 2.8.64 plugin source. The bundle does not include a vendor advisory, patch diff, or exploitation report. Do not assume other GTranslate products or versions are affected beyond the stated Pro and Enterprise scope.
Mitigation direction
- Inventory WordPress sites using GTranslate Pro or Enterprise.
- Update to a non-vulnerable GTranslate release; the record identifies versions before 2.8.65 as affected.
- Check vendor guidance for the exact fixed release and upgrade path.
- Retire unsupported browsers where possible, especially Internet Explorer 9 or older.
- Review WAF rules for reflected script attempts in request URIs.
Validation and detection
- Confirm installed GTranslate edition and version on each WordPress site.
- Verify whether any deployment is below version 2.8.65.
- Review rendered pages for unsafe reflection of request URI values.
- Check web logs for unusual encoded or script-like request URIs.
- Document whether compensating controls cover public WordPress routes.
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-116: 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-2021-34630 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
- 5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
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:U/C:L/I:L/A:L1.63.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://plugins.svn.wordpress.org/gtranslate/tags/2.8.64/gtranslate.phpCVE 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 Encoding or Escaping of Output
Improper Encoding or Escaping of Output represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.