CVE-2023-26262

HIGHNVD 7.28.8▲Elevated

7.2

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.

CVSS v3: 7.2
EG Score: 8.8(medium)
EPSS: 95.2%
KEV: Not listed

Published

March 14, 2023

Last Modified

February 27, 2025

References (4)

cve@mitrehttps://github.com/istern/CVE-2023-26262
cve@mitrehttps://www.sitecore.com/trust
af854a3a-2127-422b-91ae-364da2661108https://github.com/istern/CVE-2023-26262
af854a3a-2127-422b-91ae-364da2661108https://www.sitecore.com/trust

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-434Unrestricted Upload of File with Dangerous Type

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2023-26262?

CVE-2023-26262 is a high vulnerability published on March 14, 2023. 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.

When was CVE-2023-26262 disclosed?

CVE-2023-26262 was first published in the National Vulnerability Database on March 14, 2023, with the most recent update on February 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-26262 actively exploited?

CVE-2023-26262 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

CVE-2023-26262 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.8.

How do I remediate CVE-2023-26262?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-26262, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-26262

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-26262?

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Published

Last Modified

References (4)

Frequently asked(5)

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