CVE-2025-31639Network attack vector

Forced administrator actions via missing nonce validation

Published May 16, 2025 · Updated Apr 28, 2026

Cross-site request forgery in ThemeTon Spare 1.7 and earlier allows remote attackers to force an administrator to perform unwanted actions. Patchstack identifies missing or incorrect nonce validation in an unnamed function, but the affected function and accepted request remain undisclosed. Exploitation requires a logged-in administrator to open a crafted link, page, or form; no public source identifies the resulting action.

CVSS severity4.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in ThemeTon Spare 1.7 and earlier allows remote attackers to force an administrator to perform unwanted actions. Patchstack identifies missing or incorrect nonce validation in an unnamed function, but the affected function and accepted request remain undisclosed. Exploitation requires a logged-in administrator to open a crafted link, page, or form; no public source identifies the resulting action.

The record

CVE
CVE-2025-31639
Published
May 16, 2025
Updated
Apr 28, 2026
Vendor
ThemeTon
Product
Spare
Classifications
CWE-352, CAPEC-62, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=1.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ThemeTon · Spareversion=n/a <=1.7

Published CVSS scores

4.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery
T1204.001Malicious Link

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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