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CVE-2026-129430 axeloz filesharing before 2.14.3 Stored XSS via Bundle Description Markdown Links

5.1 medium

Medium (5.1) in axeloz filesharing.

On this page
Axeloz Filesharing before 2.14.3 contains a stored cross-site scripting vulnerability that allows authenticated users to inject script by storing raw HTML or javascript: Markdown links in bundle descriptions. Recipients viewing the public bundle preview page execute the script via Alpine x-html, letting attackers steal the owner_token from localStorage and issue owner-scoped requests against victim bundles.

Severity

CVSS 4.0

5.1 medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CVSS 3.1

5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
CWE-79 Improper Neutralization of Input During Web Page Generation (Cross-site Scripting)
OWASP Top 10
A05:2025 Injection
Published
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Show the promptExplain CVE-2026-129430 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-129430?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-129430?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-129430 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

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CVE-2026-129430

An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:

[![CVE-2026-129430](https://cve.bz/cve/badge/CVE-2026-129430.svg)](https://cve.bz/cve/CVE-2026-129430)

HTML:

<a href="https://cve.bz/cve/CVE-2026-129430"><img src="https://cve.bz/cve/badge/CVE-2026-129430.svg" alt="CVE-2026-129430"></a>

Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
axeloz filesharingbefore 2.14.3

Attack patterns (CAPEC)

  • CAPEC-63 Cross-Site Scripting (XSS) Likelihood: High · Severity: Very High
  • CAPEC-85 AJAX Footprinting Likelihood: High · Severity: Low
  • CAPEC-209 XSS Using MIME Type Mismatch Severity: Medium
  • CAPEC-588 DOM-Based XSS Likelihood: High · Severity: Very High
  • CAPEC-591 Reflected XSS Likelihood: High · Severity: Very High
  • CAPEC-592 Stored XSS Likelihood: High · Severity: Very High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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