CVE-2022-1894Network attack vector

Administrator-level stored XSS via unsanitized settings

Published Jul 11, 2022 · Updated Aug 3, 2024

Stored XSS in Sygnoos Popup Builder before 4.1.11 allows remote authenticated users with administrator access to inject scripts. The plugin saves certain popup settings without sanitizing them and renders the stored values without output escaping, causing injected JavaScript to execute in a visitor's browser. Exploitation requires administrator-level access and user interaction, and it affects multisite sites or installations where the unfiltered_html capability is disabled.

CVSS severity4.8
Medium
EPSS probability0.58%
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 Sygnoos Popup Builder before 4.1.11 allows remote authenticated users with administrator access to inject scripts. The plugin saves certain popup settings without sanitizing them and renders the stored values without output escaping, causing injected JavaScript to execute in a visitor's browser. Exploitation requires administrator-level access and user interaction, and it affects multisite sites or installations where the unfiltered_html capability is disabled.

The record

CVE
CVE-2022-1894
Published
Jul 11, 2022
Updated
Aug 3, 2024
Vendor
Sygnoos
Product
Popup Builder
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=4.1.11 <4.1.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Sygnoos · Popup Builderversion=4.1.11 <4.1.11

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
4.8NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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