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CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Weakness Summary

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.

  • Canonical source: MITRE CWE-80 (opens in a new tab)
  • Published Atomicorp CVE observations: 13
  • Distinct affected products in those observations: 12
  • Active Atomicorp rules associated with this weakness: 17

Atomicorp Research Context

Atomicorp has published CVE-specific research observations associated with this weakness category. Each linked CVE page states whether the tested request was detected or blocked and is the authoritative customer-facing finding.

The CVEs and rules shown here are selected published examples, not a complete list of Atomicorp protections. If a CWE, CVE, or rule is absent from this page, no conclusion should be drawn about whether Atomicorp protects against that weakness or attack method.

A CWE describes a class of software weakness. It does not identify one exploit request, and association with a CWE does not mean that every vulnerability or exploitation path in that category is detected or blocked.

Selected Published CVE Observations

CVEVulnerabilityProductAtomicorp findingObserved rules
CVE-2024-58355Cal.com through 4.7.15 Cross-Site Scripting via booking questionscal.diyAttack Blocked by Atomicorp333140 , 333141 , 340087 , 340095 , 340099 , 340147 , 340148 , 341099 , 341256 , 341266 , 342259 , 346755 , 350147 , 350148
CVE-2026-39344Reflected XSS the login page through the 'username' parameterchurchcrmAttack Blocked by Atomicorp333140 , 333141 , 340087 , 340095 , 340099 , 340147 , 340148 , 341099 , 341256 , 341266 , 342259 , 346755 , 350147 , 350148
CVE-2025-66472XWiki DeleteApplication - Cross-Site ScriptingxwikiAttack Blocked by Atomicorp346755
CVE-2026-24128XWiki Platform Distribution Flavor Main - Cross-Site Scriptingxwiki-platform-distribution-flavor-mainAttack Blocked by Atomicorp333141 , 340099 , 340147 , 340148 , 341099 , 341256 , 342259 , 346755 , 347198 , 350148
CVE-2026-40105XWiki - Cross-Site Scriptingxwiki-platformAttack Blocked by Atomicorp340147 , 340148 , 341256 , 341266 , 342259 , 346755 , 350147 , 350148
CVE-2023-44393Piwigo - Cross-Site ScriptingpiwigoAttack Blocked by Atomicorp341266 , 346755
CVE-2024-41810Twisted - Open Redirect & XSStwistedAttack Blocked by Atomicorp340147 , 340148 , 341256 , 341266 , 342259 , 346755 , 350147 , 350148
CVE-2024-4439WordPress Core <6.5.2 - Cross-Site ScriptingWordPressDetected by Atomicorp377360
CVE-2025-54589Copyparty <=1.18.6 - Cross-Site ScriptingcopypartyAttack Blocked by Atomicorp340147 , 340148 , 341256 , 341266 , 342259 , 346755 , 350147 , 350148
CVE-2026-50229Apache Tomcat - Cross-Site ScriptingtomcatAttack Blocked by Atomicorp340147 , 340148 , 341256 , 341266 , 342259 , 346755 , 350148
CVE-2026-52773YesWiki Archived Revision - Cross-Site ScriptingyeswikiAttack Blocked by Atomicorp340147 , 340148
CVE-2026-52774YesWiki Bazar Widget - Reflected XSS via 'id' ParameteryeswikiAttack Blocked by Atomicorp333141 , 340149 , 341256 , 342259 , 346755 , 350148
CVE-2026-34246CtrlPanel: Stored XSS in Admin Role Management via Unescaped DataTable HTML OutputpanelAttack Blocked by Atomicorp333140 , 333141 , 340095 , 340147 , 340148 , 342259 , 346755

Associated Atomicorp WAF Rules

RuleStatusBehavior
333140Activedisruptive (deny)
333141Activedisruptive (deny)
340087Activedisruptive (deny)
340095Activedisruptive (deny)
340099Activedisruptive (deny)
340147Activedisruptive (deny)
340148Activedisruptive (deny)
340149Activedisruptive (deny)
341099Activedisruptive (deny)
341256Activedisruptive (deny)
341266Activedisruptive (deny)
342259Activedisruptive (deny)
346755Activedisruptive (deny)
347198Activedisruptive (deny)
350147Activedisruptive (deny)
350148Activedisruptive (deny)
377360Activenon-disruptive (pass)

MITRE associates this CWE with the following attack-pattern entries. These taxonomy relationships are context, not Atomicorp coverage claims:

CAPEC-18 (opens in a new tab) , CAPEC-193 (opens in a new tab) , CAPEC-32 (opens in a new tab) , CAPEC-86 (opens in a new tab)