CVE-2020-22150Public exploitNetwork attack vector

Stored XSS via unneutralized permalink value

Published Jul 21, 2021 · Updated Aug 4, 2024

Stored XSS in Piwigo 2.10.1 permalink administration allows remote authenticated users to execute script through a crafted permalink. The handler accepts the POST permalink value and later renders its SVG event handler as active HTML without neutralization. A valid administrative session and anti-CSRF token are required to submit the value; execution occurs in the Piwigo browser origin when the tainted permalink is rendered.

CVSS severity6.1
Medium
EPSS probability1.10%
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 Piwigo 2.10.1 permalink administration allows remote authenticated users to execute script through a crafted permalink. The handler accepts the POST permalink value and later renders its SVG event handler as active HTML without neutralization. A valid administrative session and anti-CSRF token are required to submit the value; execution occurs in the Piwigo browser origin when the tainted permalink is rendered.

The record

CVE
CVE-2020-22150
Published
Jul 21, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NVDCVSS: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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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