CVE-2021-34630

MEDIUMNVD 5.05.0—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.0 under NVD CVSS v3. EPSS exploit probability: 1.6%, top 27% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
5.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 2%CVSS: 5.0Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Pro and Enterprise versions of GTranslate < 2.8.65, the gtranslate_request_uri_var function runs at the top of all pages and echoes out the contents of $_SERVER['REQUEST_URI']. Although this uses addslashes, and most modern browsers automatically URLencode requests, this plugin is still vulnerable to Reflected XSS in older browsers such as Internet Explorer 9 or below, or in cases where an attacker is able to modify the request en route between the client and the server, or in cases where the user is using an atypical browsing solution.

CVSS v3
5.0
EG Score
5.0(medium)
EG Risk
—
EPSS
72.8%
KEV
Not listed

Published

July 30, 2021

Last Modified

November 21, 2024

References (2)

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 22:48 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
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  14. 2026-07-15 16:55 UTCEPSS rescore
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  1. 2026-07-06 02:21 UTCEPSS rescore
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  20. 2026-06-21 14:55 UTCEPSS rescore
  21. 2026-06-19 19:24 UTCEPSS rescore
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  23. 2026-06-18 17:51 UTCEPSS rescore
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  30. 2026-06-13 22:58 UTCEPSS rescore
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  34. 2026-06-11 13:58 UTCEPSS rescore
  35. 2026-06-10 22:16 UTCEPSS rescore
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  37. 2026-06-08 14:15 UTCEPSS rescore
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  39. 2026-06-07 15:23 UTCEPSS rescore
  40. 2026-06-07 15:23 UTCEPSS rescore
  41. 2026-06-06 13:46 UTCEPSS rescore
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  43. 2026-06-06 13:46 UTCEPSS rescore
  44. 2026-06-05 22:45 UTCEPSS rescore
  45. 2026-06-05 06:09 UTCEPSS rescore
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  47. 2026-06-04 13:10 UTCEPSS rescore
  48. 2026-06-04 13:10 UTCEPSS rescore
  49. 2026-06-02 20:11 UTCEPSS rescore
  50. 2026-06-02 20:11 UTCEPSS rescore
  51. 2026-05-31 00:15 UTCEPSS rescore
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  53. 2026-05-29 13:42 UTCEPSS rescore
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  55. 2026-05-28 13:43 UTCEPSS rescore
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  57. 2026-05-27 13:39 UTCEPSS rescore
  58. 2026-05-27 13:39 UTCEPSS rescore
  59. 2026-05-27 13:39 UTCEPSS rescore
  60. 2026-05-26 13:42 UTCEPSS rescore
  61. 2026-05-26 12:54 UTCEG score recompute
  62. 2026-05-26 12:54 UTCGHSA enrichment
  63. 2026-05-26 07:17 UTCEPSS rescore
  64. 2026-05-26 07:17 UTCEPSS rescore
  65. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2021/CVE-2021-34630.yaml
    First seen Jan 1, 2021

    GTranslate < 2.8.65 - Cross-Site Scripting

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-34630?
CVE-2021-34630 is a medium vulnerability published on July 30, 2021. In the Pro and Enterprise versions of GTranslate < 2.8.65, the gtranslaterequesturivar function runs at the top of all pages and echoes out the contents of $SERVER['REQUEST_URI']. Although this uses addslashes, and most modern browsers automatically URLencode requests, this plugin is still…
When was CVE-2021-34630 disclosed?
CVE-2021-34630 was first published in the National Vulnerability Database on July 30, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-34630 actively exploited?
CVE-2021-34630 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 72.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-34630?
CVE-2021-34630 has a CVSS v3 base score of 5.0 (NVD).
How do I remediate CVE-2021-34630?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-34630, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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