CVE-2020-26517Public exploitNetwork attack vector

Browser script execution via unencoded stored content

Published Jun 8, 2021 · Updated Aug 4, 2024

Stored cross-site scripting in Intland codeBeamer ALM 10.x through 10.1.SP4 allows remote authenticated users to run scripts in a victim's browser. Uploaded HTML is served inline without neutralizing active content, while imported user fields and configured login text are rendered without output encoding. A project user can upload HTML through WebDAV, while account import and login-text injection require administrator access; a victim must open affected content, except that login-page code runs on every visit.

CVSS severity4.8
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Intland codeBeamer ALM 10.x through 10.1.SP4 allows remote authenticated users to run scripts in a victim's browser. Uploaded HTML is served inline without neutralizing active content, while imported user fields and configured login text are rendered without output encoding. A project user can upload HTML through WebDAV, while account import and login-text injection require administrator access; a victim must open affected content, except that login-page code runs on every visit.

The record

CVE
CVE-2020-26517
Published
Jun 8, 2021
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. Jun 8, 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

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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')
T1204.001User Execution: Malicious 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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