CVE-2023-0958Network attack vector

Subscriber-level plugin installation via unchecked AJAX handler

Published Jul 28, 2023 · Updated Apr 8, 2026

Missing authorization in Inisev WordPress plugins allows remote authenticated users to install select Inisev plugins via AJAX. The inisev_installation AJAX action calls handle_installation without checking the caller's plugin-installation capability, so a submitted request reaches the installer. Subscriber-level credentials are sufficient; the bounded impact is installation of select Inisev plugins rather than arbitrary plugin upload.

CVSS severity4.3
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing authorization in Inisev WordPress plugins allows remote authenticated users to install select Inisev plugins via AJAX. The inisev_installation AJAX action calls handle_installation without checking the caller's plugin-installation capability, so a submitted request reaches the installer. Subscriber-level credentials are sufficient; the bounded impact is installation of select Inisev plugins rather than arbitrary plugin upload.

The record

CVE
CVE-2023-0958
Published
Jul 28, 2023
Updated
Apr 8, 2026
Vendor
s-feeds
Product
RSS Redirect & Feedburner Alternative
Classifications
CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 28, 2023CVE 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

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=0 <=3.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

s-feeds · RSS Redirect & Feedburner Alternativeversion=0 <=3.7
Copy Delete Posts · Duplicate Postversion=0 <=1.3.9
Copy Delete Posts · Backup Migrationversion=0 <=1.2.7
Copy Delete Posts · Social Media Share Buttons & Social Sharing Iconsversion=0 <=2.8.1
Copy Delete Posts · Pop-upversion=0 <=1.1.9
Copy Delete Posts · Social Share Icons & Social Share Buttonsversion=0 <=3.5.7
Copy Delete Posts · Ultimate Posts Widgetversion=0 <=2.2.4
Copy Delete Posts · Redirectionversion=0 <=1.1.3
Copy Delete Posts · Enhanced Text Widgetversion=0 <=1.5.7
Steve85b · SSL Mixed Content Fixversion=0 <=3.2.3

Published CVSS scores

4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo