CVE-2023-4635Public exploitNetwork attack vector

Reflected XSS via unescaped tab parameter

Published Oct 21, 2023 · Updated Apr 8, 2026

Reflected XSS in AshanJay Designs LLC EventON Lite 2.2.2 and earlier allows remote attackers to run scripts via a crafted tab parameter. The EventON admin settings page returns the tab query value without sufficient sanitization or output escaping, allowing an event-handler payload to become executable markup. An attacker needs no account but must induce a logged-in WordPress user to open the crafted admin URL; the script then runs in the affected site's origin.

CVSS severity6.1
Medium
EPSS probability0.61%
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 AshanJay Designs LLC EventON Lite 2.2.2 and earlier allows remote attackers to run scripts via a crafted tab parameter. The EventON admin settings page returns the tab query value without sufficient sanitization or output escaping, allowing an event-handler payload to become executable markup. An attacker needs no account but must induce a logged-in WordPress user to open the crafted admin URL; the script then runs in the affected site's origin.

The record

CVE
CVE-2023-4635
Published
Oct 21, 2023
Updated
Apr 8, 2026
Vendor
AshanJay Designs LLC
Product
EventON Lite
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 21, 2023CVE 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 <=2.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AshanJay Designs LLC · EventON Liteversion=0 <=2.2.2

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

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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