CVE-2025-31864Public exploitNetwork attack vector

Stored XSS via unescaped indentation setting

Published Apr 1, 2025 · Updated Apr 28, 2026

Stored XSS in Out the Box's back-to-top WordPress plugin 1.0.23 and earlier allows remote attackers to execute scripts in site browsers. The dynamic-css.php template inserts the beam_me_up_scotty_bottom_indentation setting into a style block without escaping or data-type validation. Administrator access is required to save the payload, which executes on pages displaying the back-to-top button.

CVSS severity5.9
Medium
EPSS probability0.33%
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 Out the Box's back-to-top WordPress plugin 1.0.23 and earlier allows remote attackers to execute scripts in site browsers. The dynamic-css.php template inserts the beam_me_up_scotty_bottom_indentation setting into a style block without escaping or data-type validation. Administrator access is required to save the payload, which executes on pages displaying the back-to-top button.

The record

CVE
CVE-2025-31864
Published
Apr 1, 2025
Updated
Apr 28, 2026
Vendor
Out the Box
Product
Beam me up Scotty
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=1.0.23

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Out the Box · Beam me up Scottyversion=0 <=1.0.23

Published CVSS scores

5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007JavaScript/JScript

Public exploit references

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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