CVE-2020-36607Public exploitNetwork attack vector

Cross-site scripting via unneutralized language parameter

Published Dec 15, 2022 · Updated Apr 21, 2025

Cross-site scripting in FeehiCMS 2.0.8 and earlier allows remote attackers to execute script through a crafted language selection. The frontend and backend language endpoints place the unneutralized lang value into an HTML lang attribute, allowing an injected script element to run when a FeehiCMS post is rendered. Exploitation requires user interaction with a crafted URL; script execution occurs in the application's browser origin and can read or alter page-accessible data.

CVSS severity6.1
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in FeehiCMS 2.0.8 and earlier allows remote attackers to execute script through a crafted language selection. The frontend and backend language endpoints place the unneutralized lang value into an HTML lang attribute, allowing an injected script element to run when a FeehiCMS post is rendered. Exploitation requires user interaction with a crafted URL; script execution occurs in the application's browser origin and can read or alter page-accessible data.

The record

CVE
CVE-2020-36607
Published
Dec 15, 2022
Updated
Apr 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/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.

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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 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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