CVE-2023-5971Public exploitNetwork attack vector

Stored XSS via unsanitized Button Image HTML

Published May 9, 2024 · Updated Jan 9, 2026

Stored XSS in PDFCrowd Save as PDF before 3.2.0 allows remote authenticated users to inject script through the Button Image setting. The Basic Settings page stores custom Button Image HTML without sanitizing or escaping it, and the plugin renders the value on every page. Administrator privileges are required, but the attack works when unfiltered_html is disabled, including in WordPress multisite deployments.

CVSS severity4.8
Medium
EPSS probability0.45%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in PDFCrowd Save as PDF before 3.2.0 allows remote authenticated users to inject script through the Button Image setting. The Basic Settings page stores custom Button Image HTML without sanitizing or escaping it, and the plugin renders the value on every page. Administrator privileges are required, but the attack works when unfiltered_html is disabled, including in WordPress multisite deployments.

The record

CVE
CVE-2023-5971
Published
May 9, 2024
Updated
Jan 9, 2026
Vendor
Charlestsmith
Product
Save as PDF Plugin by PDFCrowd
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Jan 9, 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 <3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Charlestsmith · Save as PDF Plugin by PDFCrowdversion=0 <3.2.0

Published CVSS scores

4.8CISA-ADPCVSS: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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 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')
T1059.007JavaScript

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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