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CVE-2021-26722: LinkedIn Oncall vulnerable to Cross-Site Scripting

April 30, 2021 (updated October 7, 2024)

LinkedIn Oncall through 1.4.0 allows reflected XSS via /query because of mishandling of the “No results found for” message in the search bar.

References

  • github.com/advisories/GHSA-rfw2-x9f8-2f6m
  • github.com/linkedin/oncall
  • github.com/linkedin/oncall/commit/843bc106a1c1b1699e9e52b6b0d01c7efe1d6225
  • github.com/linkedin/oncall/issues/341
  • github.com/pypa/advisory-database/tree/main/vulns/oncall/PYSEC-2021-33.yaml
  • nvd.nist.gov/vuln/detail/CVE-2021-26722
  • pypi.org/project/oncall

Code Behaviors & Features

Detect and mitigate CVE-2021-26722 with GitLab Dependency Scanning

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Affected versions

All versions before 1.4.1

Fixed versions

  • 1.4.1

Solution

Upgrade to version 1.4.1 or above.

Impact 6.1 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Learn more about CVSS

Weakness

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

Source file

pypi/oncall/CVE-2021-26722.yml

Spotted a mistake? Edit the file on GitLab.

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