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CVE-2026-117679VulnerabilityPublished

SHIRASAGI · Cross-site Scripting Vulnerability Exists

Source GCVE Database

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Authoritative record:CVE-2026-117679· Medium 5.4

Not known to be exploited · CVSS 5.4 Medium.

Data as of 5 Nov 2026, 10:30 UTC

CVSS 3.0 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (jpcert)CVSS 3.05.4
CNA (jpcert)CVSS 4.05.1
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
SHIRASAGI ProjectSHIRASAGIAffected
  • >=1.12.0 <=1.21.0
Fixed in–
RubyGemsshirasagipkg:gem/shirasagiOther threatsAffected
  • >=1.12.0 <=1.21.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Since the vulnerability requires authentication and user interaction, limiting user privileges and educating users about suspicious content may reduce risk. Monitor vendor advisories for official fixes or updates.

Description

A cross-site scripting (XSS) vulnerability in SHIRASAGI allows an authenticated attacker to execute arbitrary scripts in a user's browser when the user visits a site using the affected product. This vulnerability requires user interaction and authentication. The flaw impacts confidentiality and integrity but does not affect availability.

References

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