Medium severity · published Aug 24, 2026
CVE-2026-71503
Dolibarr < 24.0.0 Reflected XSS via Extra Fields Administration Template
6.1
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
dolibarr · Dolibarr
before 24.0.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-71503
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-71503
technical-description
https://codeant.ai/security-research/cve-2026-71503-reflected-xss-via-the-type-parameter
release-notes
https://github.com/Dolibarr/dolibarr/releases/tag/24.0.0
patch
https://github.com/Dolibarr/dolibarr/commit/3094b0aa3b500ff51020b660a7e66ffcb9d1cd91
third-party-advisory
https://www.vulncheck.com/advisories/dolibarr-reflected-xss-via-extra-fields-administration-template
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