CVE-2022-30690Public exploitNetwork attack vector

Reflected XSS via unsanitized 403ErrorMsg reflection

Published Aug 22, 2022 · Updated Apr 15, 2025

Reflected XSS in WWBN AVideo 11.6 and dev master commit 3f7c0364 allows remote attackers to execute JavaScript via a crafted request. The view/img/image403.php endpoint inserts the 403ErrorMsg GET or POST value into the error page without output encoding or sanitization. Exploitation requires an authenticated user to follow the crafted request; the resulting script runs with that user's browser privileges.

CVSS severity9.6
Critical
EPSS probability83.93%
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 WWBN AVideo 11.6 and dev master commit 3f7c0364 allows remote attackers to execute JavaScript via a crafted request. The view/img/image403.php endpoint inserts the 403ErrorMsg GET or POST value into the error page without output encoding or sanitization. Exploitation requires an authenticated user to follow the crafted request; the resulting script runs with that user's browser privileges.

The record

CVE
CVE-2022-30690
Published
Aug 22, 2022
Updated
Apr 15, 2025
Vendor
WWBN
Product
AVideo
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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=11.6
  2. Affected versionversion=dev master commit 3f7c0364

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WWBN · AVideoversion=11.6; version=dev master commit 3f7c0364

Published CVSS scores

9.6Cisco TalosCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

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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