CVE-2022-31167Network attack vector

Access-rule overwrite via colliding security cache keys

Published Sep 7, 2022 · Updated Apr 22, 2025

Improper authorization in affected XWiki Platform branches allows remote authenticated users to overwrite page or space access rights over the network. The security cache assigns a document such as Page1.Page2 and the identically named space to one entry, causing the first cached rule set to be reused for the other. A low-privileged account can create the colliding page and prime the cache, exposing protected content or permitting unauthorized modifications.

CVSS severity7.1
High
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in affected XWiki Platform branches allows remote authenticated users to overwrite page or space access rights over the network. The security cache assigns a document such as Page1.Page2 and the identically named space to one entry, causing the first cached rule set to be reused for the other. A low-privileged account can create the colliding page and prime the cache, exposing protected content or permitting unauthorized modifications.

The record

CVE
CVE-2022-31167
Published
Sep 7, 2022
Updated
Apr 22, 2025
Vendor
CryptPad
Product
XWiki Platform
Classifications
CWE-285, CWE-862, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 13.0, < 13.4.6
  2. Affected versionversion=>= 13.10, < 13.10.1
  3. Affected versionversion=>= 5.0, < 12.10.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CryptPad · XWiki Platformversion=>= 13.0, < 13.4.6; version=>= 13.10, < 13.10.1; version=>= 5.0, < 12.10.11

Published CVSS scores

7.1GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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 IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-862Missing Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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