CVE-2022-3835Public exploitNetwork attack vector

Administrator stored XSS via unescaped settings

Published Dec 26, 2022 · Updated Apr 11, 2025

Stored XSS in Kwayy HTML Sitemap before 4.0 allows remote authenticated users with administrator access to inject scripts. The settings handler stores Exclude post and Custom Post Name values without sanitization and renders them back into the settings page without attribute or HTML escaping. Administrator privileges and a configuration that denies unfiltered_html, such as WordPress multisite, are required; opening the poisoned settings page executes the script in a viewer’s browser.

CVSS severity4.8
Medium
EPSS probability0.53%
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 Kwayy HTML Sitemap before 4.0 allows remote authenticated users with administrator access to inject scripts. The settings handler stores Exclude post and Custom Post Name values without sanitization and renders them back into the settings page without attribute or HTML escaping. Administrator privileges and a configuration that denies unfiltered_html, such as WordPress multisite, are required; opening the poisoned settings page executes the script in a viewer’s browser.

The record

CVE
CVE-2022-3835
Published
Dec 26, 2022
Updated
Apr 11, 2025
Vendor
Bimal Rekhadiya
Product
Kwayy HTML Sitemap
Classifications
CWE-79, T1189
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 11, 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 <4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Bimal Rekhadiya · Kwayy HTML Sitemapversion=0 <4.0

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
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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