CVE-2023-2995Network attack vector

Admin stored script injection via unsanitized settings

Published Sep 19, 2023 · Updated Apr 23, 2025

Stored cross-site scripting in Leyka before 3.30.4 allows remote authenticated users to inject scripts via plugin settings. Leyka settings fail to sanitize input and escape output, so an administrator can store script content that executes when users load the affected page. The issue requires administrator-level privileges and affects multisite or installations with unfiltered_html disabled, enabling script execution in other users' browsers without direct server compromise.

CVSS severity4.8
Medium
EPSS probability0.44%
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

Stored cross-site scripting in Leyka before 3.30.4 allows remote authenticated users to inject scripts via plugin settings. Leyka settings fail to sanitize input and escape output, so an administrator can store script content that executes when users load the affected page. The issue requires administrator-level privileges and affects multisite or installations with unfiltered_html disabled, enabling script execution in other users' browsers without direct server compromise.

The record

CVE
CVE-2023-2995
Published
Sep 19, 2023
Updated
Apr 23, 2025
Vendor
Teplitsa of Social Technologies
Product
Leyka
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=0 <3.30.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Teplitsa of Social Technologies · Leykaversion=0 <3.30.4

Published CVSS scores

4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/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.

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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