CVE-2023-35813

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-06-18. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 87%
CISA-KEV: Not listedEPSS PROB: 87%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Multiple Sitecore products allow remote code execution. This affects Experience Manager, Experience Platform, and Experience Commerce through 10.3.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
94(Track)
EG Risk 94/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation87% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
87%
EPSS %ILE
100%
KEV
Not listed

Published

June 17, 2023

Last Modified

December 17, 2024

Advisory Details (1)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

%kb_name - %short_descr - Knowledge Portal

https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1002979

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-28 21:38 UTCEPSS rescore
  2. 2026-08-27 14:23 UTCEPSS rescore
  3. 2026-08-26 14:43 UTCEPSS rescore
  4. 2026-08-24 14:14 UTCEPSS rescore
  5. 2026-08-20 22:53 UTCEPSS rescore
  6. 2026-08-19 17:02 UTCEPSS rescore
  7. 2026-08-17 13:45 UTCEPSS rescore
  8. 2026-08-16 02:12 UTCEPSS rescore
  9. 2026-08-12 13:48 UTCEPSS rescore
  10. 2026-08-11 13:39 UTCEPSS rescore
  11. 2026-08-09 13:44 UTCEPSS rescore
  12. 2026-08-08 16:34 UTCEPSS rescore
  13. 2026-08-07 16:24 UTCEPSS rescore
  14. 2026-08-04 10:35 UTCEPSS rescore
  15. 2026-08-03 10:34 UTCEPSS rescore
  16. 2026-08-02 02:25 UTCEPSS rescore
  17. 2026-08-01 04:13 UTCEPSS rescore
  18. 2026-07-30 16:26 UTCEPSS rescore
  19. 2026-07-30 16:26 UTCEPSS rescore
  20. 2026-07-24 14:16 UTCEPSS rescore
  21. 2026-07-23 02:24 UTCEG score recompute
  22. 2026-07-22 23:11 UTCEG score recompute
  23. 2026-07-22 14:06 UTCEPSS rescore
  24. 2026-07-20 17:06 UTCEPSS rescore
  25. 2026-07-15 16:56 UTCEPSS rescore
Show 38 more
  1. 2026-07-15 16:56 UTCEPSS rescore
  2. 2026-07-13 22:28 UTCEPSS rescore
  3. 2026-07-13 22:28 UTCEPSS rescore
  4. 2026-07-13 06:11 UTCEPSS rescore
  5. 2026-07-13 06:11 UTCEPSS rescore
  6. 2026-07-12 05:45 UTCEPSS rescore
  7. 2026-07-04 06:29 UTCEPSS rescore
  8. 2026-06-30 23:21 UTCEPSS rescore
  9. 2026-06-30 23:21 UTCEPSS rescore
  10. 2026-06-29 14:05 UTCEPSS rescore
  11. 2026-06-29 14:05 UTCEPSS rescore
  12. 2026-06-28 14:06 UTCEPSS rescore
  13. 2026-06-28 14:06 UTCEPSS rescore
  14. 2026-06-25 13:48 UTCEPSS rescore
  15. 2026-06-25 13:48 UTCEPSS rescore
  16. 2026-06-24 14:04 UTCEPSS rescore
  17. 2026-06-24 14:03 UTCEPSS rescore
  18. 2026-06-23 21:31 UTCEPSS rescore
  19. 2026-06-23 21:31 UTCEPSS rescore
  20. 2026-06-18 17:51 UTCEPSS rescore
  21. 2026-06-18 17:51 UTCEPSS rescore
  22. 2026-06-15 17:47 UTCEPSS rescore
  23. 2026-06-10 13:21 UTCEPSS rescore
  24. 2026-06-08 14:16 UTCEPSS rescore
  25. 2026-06-08 14:15 UTCEPSS rescore
  26. 2026-06-07 15:23 UTCEPSS rescore
  27. 2026-06-07 15:23 UTCEPSS rescore
  28. 2026-06-05 22:46 UTCEPSS rescore
  29. 2026-06-05 22:46 UTCEPSS rescore
  30. 2026-05-29 13:43 UTCEPSS rescore
  31. 2026-05-29 13:43 UTCEPSS rescore
  32. 2026-05-26 13:43 UTCEPSS rescore
  33. 2026-05-26 13:43 UTCEPSS rescore
  34. 2026-05-26 07:18 UTCEPSS rescore
  35. 2026-05-26 07:18 UTCEPSS rescore
  36. 2026-05-26 07:18 UTCEPSS rescore
  37. 2026-05-24 23:15 UTCEG score recompute
  38. 2026-05-24 23:15 UTCGHSA enrichment

Publicly available exploits

(4 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCher3ticAVI/CVE-2023-35813
    First seen Nov 11, 2025

    CVE-2023-35813 is a proof-of-concept used to determine if an instance of Sitecore is vulnerable by analyzing a server Response Header for modification.

    Open source ↗
  • GitHub PoCBagheeraAltered/CVE-2023-35813-PoC
    First seen Jan 15, 2024

    An exploit for the Sitecore Remote Code Execution Vulnerability

    Open source ↗
  • GitHub PoCaalexpereira/CVE-2023-35813
    First seen Dec 31, 2023

    Exploit for CVE-2023-35813 POC

    Open source ↗
  • Nucleihttp/cves/2023/CVE-2023-35813.yaml
    First seen Jan 1, 2023

    Sitecore - Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-35813?
CVE-2023-35813 is a critical vulnerability published on June 17, 2023. Multiple Sitecore products allow remote code execution. This affects Experience Manager, Experience Platform, and Experience Commerce through 10.3.
When was CVE-2023-35813 disclosed?
CVE-2023-35813 was first published in the National Vulnerability Database on June 17, 2023, with the most recent update on December 17, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-35813 actively exploited?
CVE-2023-35813 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87% probability of exploitation in the next 30 days, which ranks it in the top 0.3% of all scored CVEs.
What is the CVSS score of CVE-2023-35813?
CVE-2023-35813 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-35813?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-35813, 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

Explore the affected products and dependency analysis for CVE-2023-35813

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