CVE-2022-26352Known exploitationPublic exploitNetwork attack vector

Remote code execution via unsanitized multipart filename

Published Jul 17, 2022 · Updated Oct 21, 2025

Path traversal in the ContentResource API in dotCMS 3.0 through 22.02 allows remote attackers to upload files outside temporary storage. The multipart upload handler uses the client-supplied filename for a temporary path without sanitizing traversal sequences, allowing parent-directory components to escape that directory. When anonymous content creation is enabled, no authentication is required to place a JSP under the web root and execute code.

CVSS severity9.8
Critical
EPSS probability91.55%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the ContentResource API in dotCMS 3.0 through 22.02 allows remote attackers to upload files outside temporary storage. The multipart upload handler uses the client-supplied filename for a temporary path without sanitizing traversal sequences, allowing parent-directory components to escape that directory. When anonymous content creation is enabled, no authentication is required to place a JSP under the web root and execute code.

The record

CVE
CVE-2022-26352
Published
Jul 17, 2022
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2022Exploitation reportedCISA Known Exploited Vulnerabilities Catalog listing
  3. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsShadowserver observations through Sep 16, 2026. Gaps indicate unavailable data.
Sep 10, 2026Sep 16, 2026
View daily counts
Reporting dayUnique IPs
Sep 10, 20265
Sep 11, 20261
Sep 12, 20262
Sep 13, 2026Unavailable
Sep 14, 20262
Sep 15, 2026Unavailable
Sep 16, 20262
Latest reporting daySep 16, 2026
Latest daily unique IPs2
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

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