CVE-2025-12821Network attack vector

Admin-assisted code execution via missing nonce validation

Published Feb 19, 2026 · Updated Feb 19, 2026

CSRF in SpiceThemes NewsBlogger 0.2.5.6 through 0.2.6.1 allows remote attackers to execute code through forged plugin-install requests. The newsblogger_install_and_activate_plugin() function omits effective WordPress nonce validation before accepting a request that uploads and activates a plugin. Exploitation requires an authenticated site administrator to perform an attacker-induced action, such as opening a crafted link, after which uploaded PHP code runs on the server.

CVSS severity8.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in SpiceThemes NewsBlogger 0.2.5.6 through 0.2.6.1 allows remote attackers to execute code through forged plugin-install requests. The newsblogger_install_and_activate_plugin() function omits effective WordPress nonce validation before accepting a request that uploads and activates a plugin. Exploitation requires an authenticated site administrator to perform an attacker-induced action, such as opening a crafted link, after which uploaded PHP code runs on the server.

The record

CVE
CVE-2025-12821
Published
Feb 19, 2026
Updated
Feb 19, 2026
Vendor
SpiceThemes
Product
NewsBlogger
Classifications
CWE-352, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 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=0.2.5.6 <=0.2.6.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SpiceThemes · NewsBloggerversion=0.2.5.6 <=0.2.6.1

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 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)
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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