What is CVE-2022-26352?

CVE-2022-26352 is a critical-severity vulnerability in Dotcms. CVSS score: 9.8/10. Published 2022-07-17.

How severe is CVE-2022-26352?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-26352 known to be exploited?

Yes. CVE-2022-26352 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-25), indicating it is being actively exploited. 13 public proof-of-concept repositories are indexed.

Vulnerability in Dotcms

CVE-2022-26352

An issue was discovered in the ContentResource API in dotCMS 3.0 through 22.02. Attackers can craft a multipart form request to post a file whose filename is not initially sanitized. This allows directory traversal, in which the file is saved outside of the intended storage location. If anonymous content creation is enabled, this allows an unauthenticated attacker to upload an executable file, such as a .jsp file, that can lead to remote code execution.

Published 2022-07-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.912 (99.8th percentile), scored 2026-10-19.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.916 · newest: 0.912 · change: -0.003

Affected products

Dotcms

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-08-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-09-15.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

groups.google.com/g/dotcms (Permissions Required, Third Party Advisory)
packetstormsecurity.com/files/167365/dotCMS-Shell-Upload.html (Exploit, VDB Entry, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2022-26352?: CVE-2022-26352 is a critical-severity vulnerability in Dotcms. CVSS score: 9.8/10. Published 2022-07-17.
How severe is CVE-2022-26352?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-26352 known to be exploited?: Yes. CVE-2022-26352 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-25), indicating it is being actively exploited. 13 public proof-of-concept repositories are indexed.