CVE-2024-11808Network attack vector

Script execution via unescaped _wpnonce reflection

Published Dec 21, 2024 · Updated Apr 8, 2026

Reflected XSS in Pingmeter Uptime Monitoring 1.0.3 and earlier allows remote attackers to inject scripts through the _wpnonce parameter. The plugin's request-handling path returns the attacker-controlled _wpnonce value in an HTML response without sufficient sanitization or output escaping. Execution requires a user to follow a crafted link, after which the injected script runs in that user's browser context and can read or modify data accessible to the page.

CVSS severity6.1
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Pingmeter Uptime Monitoring 1.0.3 and earlier allows remote attackers to inject scripts through the _wpnonce parameter. The plugin's request-handling path returns the attacker-controlled _wpnonce value in an HTML response without sufficient sanitization or output escaping. Execution requires a user to follow a crafted link, after which the injected script runs in that user's browser context and can read or modify data accessible to the page.

The record

CVE
CVE-2024-11808
Published
Dec 21, 2024
Updated
Apr 8, 2026
Vendor
Pingmeter
Product
Pingmeter Uptime Monitoring
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=1.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pingmeter · Pingmeter Uptime Monitoringversion=0 <=1.0.3

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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