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VulnerabilityPublished Updated

CVE-2025-34510: Sitecore Experience Manager · Relative Path Traversal

Affects Sitecore Experience ManagerSource CVE Database V5

0

Public exploit available (Metasploit) · 24% EPSS · CVSS 8.8 High.

Data as of 26 Oct 2026, 15:59 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
24.8% chance of exploitation in 30 days – higher than 97% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: evidence found.

    1 Metasploit module

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
NuGetsitecore.experiencemanagerpkg:nuget/sitecore.experiencemanagerOther threatsAffected
  • =9.0
  • =10.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2025-34510 effectively, organizations should implement a multi-layered approach beyond generic advice. First, immediately restrict ZIP archive upload capabilities to trusted users and roles with minimal necessary privileges to reduce the attack surface. Implement rigorous server-side validation of all uploaded ZIP files, specifically sanitizing and normalizing file paths to prevent directory traversal sequences before extraction. Employ sandboxing or isolated environments for processing uploaded archives to contain potential malicious activity. Monitor logs and network traffic for unusual upload patterns or failed extraction attempts indicative of exploitation attempts. Enforce strong authentication mechanisms, including multi-factor authentication, to reduce the risk posed by compromised credentials. Until official patches are released, consider disabling ZIP upload features if feasible or applying virtual patching via web application firewalls (WAFs) configured to detect and block path traversal payloads in upload requests. Regularly review and update incident response plans to address potential exploitation scenarios. Finally, maintain close communication with Sitecore for timely updates and patches.

Description

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.

References

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