CVE-2024-8734Network attack vector

Reflected XSS via unescaped settings-page URL

Published Sep 13, 2024 · Updated Apr 8, 2026

Reflected XSS in Lucasstad Lucas String Replace 2.0.5 and earlier allows remote attackers to inject scripts via crafted links. The settings-page code builds a URL with add_query_arg and emits it without the output escaping needed to neutralize injected markup. Exploitation requires no authentication but requires a targeted user to open an attacker-controlled link, allowing script execution in that user’s browser.

CVSS severity6.1
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

Reflected XSS in Lucasstad Lucas String Replace 2.0.5 and earlier allows remote attackers to inject scripts via crafted links. The settings-page code builds a URL with add_query_arg and emits it without the output escaping needed to neutralize injected markup. Exploitation requires no authentication but requires a targeted user to open an attacker-controlled link, allowing script execution in that user’s browser.

The record

CVE
CVE-2024-8734
Published
Sep 13, 2024
Updated
Apr 8, 2026
Vendor
Lucasstad
Product
Lucas String Replace
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 13, 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 <=2.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Lucasstad · Lucas String Replaceversion=0 <=2.0.5

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1204.001Malicious Link

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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