CVE-2024-1588Public exploitNetwork attack vector

Stored XSS via unescaped Read More override

Published Apr 8, 2024 · Updated Mar 27, 2025

Stored XSS in SendPress Newsletters 1.23.11.6 and earlier allows remote authenticated users to inject scripts through an advanced setting. The Advanced Settings Read More override value is stored without sanitization and rendered without escaping, so a crafted HTML attribute executes when the settings view reloads. Administrator-level access and victim interaction with that view are required; exploitation remains possible when unfiltered_html is disabled, including in multisite installations.

CVSS severity6.8
Medium
EPSS probability0.71%
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 SendPress Newsletters 1.23.11.6 and earlier allows remote authenticated users to inject scripts through an advanced setting. The Advanced Settings Read More override value is stored without sanitization and rendered without escaping, so a crafted HTML attribute executes when the settings view reloads. Administrator-level access and victim interaction with that view are required; exploitation remains possible when unfiltered_html is disabled, including in multisite installations.

The record

CVE
CVE-2024-1588
Published
Apr 8, 2024
Updated
Mar 27, 2025
Vendor
SendPress
Product
SendPress Newsletters
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record 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 <=1.23.11.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

SendPress · SendPress Newslettersversion=0 <=1.23.11.6

Published CVSS scores

6.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1203Exploitation for Client Execution

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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