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Fencer Intel
high 8.8

CVE-2025-34510 in the critical feed json

Sitecore XM, XC, and XP Post-Auth RCE via Zip Slip

published last yr. modified 4mo ago also EUVD-2025-18525

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
24.8%
EPSS 24.8% chance of exploitation in 30 days, percentile 97%
public exploits
1
Metasploit

Summary

Sitecore Experience Manager (XM), Experience Platform (XP), and Experience Commerce (XC) versions 9.0 through 9.3 and 10.0 through 10.4 are affected by a Zip Slip vulnerability. A remote, authenticated attacker can exploit this issue by sending a crafted HTTP request to upload a ZIP archive containing path traversal sequences, allowing arbitrary file writes and leading to code execution.

Patch / fix

  • sitecore experience_platform 10.4

Is CVE-2025-34510 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Timeline

  1. First public exploit (Metasploit exploit/windows/http/sitecore_xp_cve_2025_34510)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

24.84% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Sitecore Experience Manager
  • Sitecore Experience Platform
  • Sitecore Experience Commerce

Classification

Weakness
  • CWE-23 Relative Path Traversal

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.