XSS in Linkedin Oncall

CVE-2021-26722

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.032 (86.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-26722?
CVE-2021-26722 is a medium-severity vulnerability in Linkedin Oncall, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-02-05.
How severe is CVE-2021-26722?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-26722 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.