CVE-2021-26263 Cross-site scripting in Odoo Community

What is CVE-2021-26263?

CVE-2021-26263 is a high-severity cross-site scripting vulnerability in Odoo Odoo, published on 25 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cross-site scripting (XSS) issue in Discuss app of Odoo Community 14.0 through 15.0, and Odoo Enterprise 14.0 through 15.0, allows remote attackers to inject arbitrary web script in the browser of a victim, by posting crafted contents.

Weakness: CWE-79

Which versions are affected by CVE-2021-26263?

1 open source package ship an affected version, including odoo. It affects 1 product.

Products include Odoo Odoo.

How do I fix CVE-2021-26263?

Upgrade odoo to a fixed version for your release line: 14.0.1 or 15.0.1.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-26263 being exploited?

There is no known exploitation of CVE-2021-26263 in the wild and no public exploit code.

Other vulnerabilities in Odoo Odoo

• CVE-2020-29396 Code injection in Odoo Community Critical 9.9
• CVE-2018-14885 Auth bypass in n/a Critical 9.8
• CVE-2017-10804 Auth bypass in n/a Critical 9.8
• CVE-2018-14860 Code injection in n/a Critical 9.1
• CVE-2017-10805 Auth bypass in n/a High 8.8

All Odoo Odoo vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-odoo-2021-26263, DEBIAN-CVE-2021-26263, GHSA-mhqq-4cm6-w4w2, UBUNTU-CVE-2021-26263.