CVE-2026-34098

MEDIUMPre-NVD 4.64.6—
EchelonGraph scoreHIGH confidence

Score 4.6 from GitHub Security Advisory published 2026-07-01. a secondary CVSS source baseline 4.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
4.6
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.6Exploit: NoneExposed: 0

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

Guardian language-system fails to sanitize the id GET parameter before inserting it into HTML source and form action attributes in media.php (lines 119, 129). An authenticated attacker can craft a URL that injects script tags executing in the victim's browser session.

CVSS v3
4.6
EG Score
4.6(high)
EPSS
4.3%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Advisory Details (2)

Auto-updated Jul 3, 2026
No patch confirmed yet.
generic

Guardian Language-System XSS via id Parameter in media.php | Advisories | VulnCheck

https://www.vulncheck.com/advisories/guardian-language-system-xss-via-id-parameter-in-media-php
generic

the_guardian_system_poc · GitHub

https://gist.github.com/cyberinforepo/d5b2771d82e1b31b8fc1c33052e08dad

Vendor Advisories for CVE-2026-34098(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 17× 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. 2026-07-07 01:09 UTCEG score recompute
  2. 2026-07-07 01:09 UTCGHSA enrichment
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 23:56 UTCEG score recompute
  6. 2026-07-05 23:56 UTCGHSA enrichment
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 22:43 UTCEG score recompute
  9. 2026-07-04 22:43 UTCGHSA enrichment
  10. 2026-07-04 06:31 UTCEPSS rescore
  11. 2026-07-03 21:30 UTCEG score recompute
  12. 2026-07-03 21:30 UTCGHSA enrichment
  13. 2026-07-02 20:17 UTCEG score recompute
  14. 2026-07-02 20:17 UTCGHSA enrichment
  15. 2026-07-01 21:08 UTCNVD updateCVSS v4 → 4.8
  16. 2026-07-01 19:04 UTCEG score recompute
  17. 2026-07-01 19:04 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-34098?
CVE-2026-34098 is a medium vulnerability published on July 1, 2026. Guardian language-system fails to sanitize the id GET parameter before inserting it into HTML source and form action attributes in media.php (lines 119, 129). An authenticated attacker can craft a URL that injects script tags executing in the victim's browser session.
When was CVE-2026-34098 disclosed?
CVE-2026-34098 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34098 actively exploited?
CVE-2026-34098 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-34098?
CVE-2026-34098 has a CVSS v3 base score of 4.6 (NVD).
How do I remediate CVE-2026-34098?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34098, 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.

Dependency Blast Radius

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