CVE-2023-26262

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-03-14 · updated 2026-06-17
Weakness: CWE-434

Description

An issue was discovered in Sitecore XP/XM 10.3. As an authenticated Sitecore user, a unrestricted language file upload vulnerability exists the can lead to direct code execution on the content management (CM) server.

Affected products

Sitecore Experience Manager: through 10.3
Sitecore Experience Platform: before 10.3 — fixed in 10.3

How to fix

Upgrade to a fixed version: Sitecore Experience Platform 10.3. Check the vendor advisory for mitigations.

References

https://github.com/istern/CVE-2023-26262
https://www.sitecore.com/trust
https://github.com/istern/CVE-2023-26262
https://www.sitecore.com/trust

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