CVE-2021-36901Known exploitationNetwork attack vector

Stored XSS via unsanitized settings data import

Published Jun 15, 2022 · Updated Apr 28, 2026

Stored XSS in Phil Baker Age Gate 2.17.0 and earlier allows remote attackers to execute scripts through imported settings data. The settings import path accepts unauthenticated configuration data without sufficient sanitization and later renders attacker-controlled values without output escaping. Execution requires a user to load an affected page, where the stored script runs in that visitor's browser and can alter displayed content or access page-visible data.

CVSS severity6.1
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Phil Baker Age Gate 2.17.0 and earlier allows remote attackers to execute scripts through imported settings data. The settings import path accepts unauthenticated configuration data without sufficient sanitization and later renders attacker-controlled values without output escaping. Execution requires a user to load an affected page, where the stored script runs in that visitor's browser and can alter displayed content or access page-visible data.

The record

CVE
CVE-2021-36901
Published
Jun 15, 2022
Updated
Apr 28, 2026
Vendor
Phil Baker
Product
Age Gate
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=<= 2.17.0 <=2.17.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Phil Baker · Age Gateversion=<= 2.17.0 <=2.17.0

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/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
Privilegesunauthenticated
Known exploitationReported
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.

Reported exploitation

Technologies

Your stack

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Your stack

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