CVE-2025-3870Network attack vector

Stored script injection via missing nonce validation

Published Apr 25, 2025 · Updated Apr 8, 2026

Cross-site request forgery in the 1 Decembrie 1918 WordPress plugin 1.dec.2012 and earlier allows remote attackers to inject stored scripts. The 1-decembrie-1918/1-decembrie-1918.php settings page accepts state-changing requests without valid nonce verification and saves attacker-controlled script content. Exploitation requires an administrator to submit a forged request, after which the saved script executes in a viewer's browser.

CVSS severity6.1
Medium
EPSS probability0.30%
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 the 1 Decembrie 1918 WordPress plugin 1.dec.2012 and earlier allows remote attackers to inject stored scripts. The 1-decembrie-1918/1-decembrie-1918.php settings page accepts state-changing requests without valid nonce verification and saves attacker-controlled script content. Exploitation requires an administrator to submit a forged request, after which the saved script executes in a viewer's browser.

The record

CVE
CVE-2025-3870
Published
Apr 25, 2025
Updated
Apr 8, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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?

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

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

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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