CVE-2026-15755Network attack vector

Contributor-level stored XSS via unescaped shortcode attributes

Published Jul 24, 2026 · Updated Jul 24, 2026

Stored XSS in 100plugins Open User Map 1.4.45 and earlier allows remote authenticated users to inject scripts through shortcode attributes. The shortcode rendering path stores contributor-controlled attributes without sufficient sanitization and later emits them into map output without contextual escaping. Contributor access and a pending-review submission are sufficient; the script executes in an administrator's browser when the pending preview is opened.

CVSS severity6.4
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in 100plugins Open User Map 1.4.45 and earlier allows remote authenticated users to inject scripts through shortcode attributes. The shortcode rendering path stores contributor-controlled attributes without sufficient sanitization and later emits them into map output without contextual escaping. Contributor access and a pending-review submission are sufficient; the script executes in an administrator's browser when the pending preview is opened.

The record

CVE
CVE-2026-15755
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
100plugins
Product
Open User Map
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 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 <=1.4.45

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

100plugins · Open User Mapversion=0 <=1.4.45

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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')
T1059.007JavaScript/JScript

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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