Vulnerability · Published Aug 24, 2026 · Assigned by VulnCheck

CVE-2026-71503Dolibarr < 24.0.0 Reflected XSS via Extra Fields Administration Template

Medium 6.1

In plain English

A medium-severity cross-site scripting in dolibarr from Dolibarr. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.4%top 69.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Dolibarr before 24.0.0 contains a reflected cross-site scripting vulnerability in the extra fields administration template where the type request parameter is echoed without JavaScript-context encoding into an inline script block and no Content-Security-Policy header is emitted. An unauthenticated attacker can cause an authenticated administrator to open a crafted URL to execute arbitrary JavaScript in that session and create a persistent administrator account.

Affected products (as reported)

Vendor	Product	Versions
Dolibarr	dolibarr	0 – before 24.0.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

CodeAnt AI Blog technical-description, exploit
Dolibarr 24.0.0 Release Notes release-notes
Patch Commit patch
https://www.vulncheck.com/advisories/dolibarr-reflected-xss-via-extra-fields-administration-template third-party-advisory