XSS in Dolibarr

CVE-2021-25955

In “Dolibarr ERP CRM”, WYSIWYG Editor module, v2.8.1 to v13.0.2 are affected by a stored XSS vulnerability that allows low privileged application users to store malicious scripts in the “Private Note” field at “/adherents/note.php?id=1” endpoint. These scripts are executed in a victim’s browser when they open the page containing the vulnerable field. In the worst case, the victim who inadvertently triggers the attack is a highly privileged administrator. The injected scripts can extract the Session ID, which can lead to full Account takeover of the admin and due to other vulnerability (Improper Access Control on Private notes) a low privileged user can update the private notes which could lead to privilege escalation.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (55.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

  • Dolibarr — versions unspecified, v2.8.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-25955?
CVE-2021-25955 is a critical-severity vulnerability in Dolibarr, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2021-08-15.
How severe is CVE-2021-25955?
Critical severity. CVSS v3 base score is 9.0 out of 10.