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Public proof of conceptFix available

CVE-2023-26262

A public proof of concept exists; no exploitation attested.

  • Published2023-03-14
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-03-1421:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-26262?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-26262?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Sitecore experience manager
BranchAffectedFixed in
10.3≤ 10.3no fix published
Sitecore experience platform
BranchAffectedFixed in
10.3< 10.310.3

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedistern/CVE-2023-26262
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2023-03-14
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-pq46-vx2x-6fxf

Frequently asked questions

What is CVE-2023-26262?

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.

Is CVE-2023-26262 actively exploited?

A proof-of-concept exploit exists for CVE-2023-26262, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-26262?

CVE-2023-26262 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record