CVE-2020-13239Public exploitNetwork attack vector

Stored XSS via inline HTML file rendering

Published May 20, 2020 · Updated Aug 4, 2024

Stored XSS in Dolibarr DMS/ECM 11.0.4 allows remote authenticated users to execute script in another user's browser via an HTML file. The direct-download response renders an uploaded .html file as active browser content when the attachment parameter is removed instead of forcing a download or neutralizing the markup. Exploitation requires permission to upload a file and a victim to open the altered link; script then runs in the Dolibarr origin and can read or change data available to that victim.

CVSS severity5.4
Medium
EPSS probability0.70%
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 Dolibarr DMS/ECM 11.0.4 allows remote authenticated users to execute script in another user's browser via an HTML file. The direct-download response renders an uploaded .html file as active browser content when the attachment parameter is removed instead of forcing a download or neutralizing the markup. Exploitation requires permission to upload a file and a victim to open the altered link; script then runs in the Dolibarr origin and can read or change data available to that victim.

The record

CVE
CVE-2020-13239
Published
May 20, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2020CVE 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

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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