CVE-2026-34098 | THREATINT

Description

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.

PUBLISHED Reserved 2026-03-25 | Published 2026-07-01 | Updated 2026-07-14 | Assigner VulnCheck

MEDIUM: 4.8CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

MEDIUM: 4.6CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status

affected

Any version

affected

Credits

philopentest finder

References

gist.github.com/...inforepo/d5b2771d82e1b31b8fc1c33052e08dad (Researcher Disclosure) technical-description exploit

www.vulncheck.com/...ystem-xss-via-id-parameter-in-media-php third-party-advisory

cve.org (CVE-2026-34098)

nvd.nist.gov (CVE-2026-34098)

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