How severe is CVE-2021-26263?

CVE-2021-26263 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-26263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26263?

CVE-2021-26263 primarily affects Odoo. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-26263?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-26263 published?

CVE-2021-26263 was published on 2023-04-25 and last updated on 2026-06-17.

CVE-2021-26263

CVE-2021-26263 is a medium-severity vulnerability in Odoo with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Odoo
Published: 2023-04-25
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-26263?: 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.
How severe is CVE-2021-26263?: CVE-2021-26263 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-26263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26263?: CVE-2021-26263 primarily affects Odoo. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-26263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26263 published?: CVE-2021-26263 was published on 2023-04-25 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:odoo:odoo:14.0:*:*:*:community:*:*:*
cpe:2.3:a:odoo:odoo:14.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:odoo:odoo:15.0:*:*:*:community:*:*:*
cpe:2.3:a:odoo:odoo:15.0:*:*:*:enterprise:*:*:*

More vulnerabilities in Odoo

CVE-2018-14885 — Critical (CVSS 9.8): Incorrect access control in the database manager component in Odoo Community 10.0 and 11.0 and Odoo Enterprise 10.0 and…
CVE-2017-10804 — Critical (CVSS 9.8): In Odoo 8.0, Odoo Community Edition 9.0 and 10.0, and Odoo Enterprise Edition 9.0 and 10.0, remote attackers can bypass…
CVE-2021-44547 — Critical (CVSS 9.1): A sandboxing issue in Odoo Community 15.0 and Odoo Enterprise 15.0 allows authenticated administrators to executed…
CVE-2018-15632 — Critical (CVSS 9.1): Improper input validation in database creation logic in Odoo Community 11.0 and earlier and Odoo Enterprise 11.0 and…
CVE-2018-14860 — Critical (CVSS 9.1): Improper sanitization of dynamic user expressions in Odoo Community 11.0 and earlier and Odoo Enterprise 11.0 and…
CVE-2020-29396 — High (CVSS 8.8): A sandboxing issue in Odoo Community 11.0 through 13.0 and Odoo Enterprise 11.0 through 13.0, when running with Python…

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