Cisco Webex Meetings Web Interface Vulnerabilities

published 2022-08-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-26070

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits: 0; none known

Multiple vulnerabilities in the web interface of Cisco Webex Meetings could allow a remote attacker to conduct a cross-site scripting (XSS) attack or a frame hijacking attack against a user of the web interface. For more information about these vulnerabilities, see the Details section of this advisory.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-11-01)

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

Cisco Cisco Webex Meetings

Classification

Weakness

CWE-1021 Improper Restriction of Rendered UI Layers or Frames
CWE-79 Improper Neutralization of Input During Web Page Generation

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-xss-frmhijck-kO3wmkuS
vendor-advisory

Sources

CVE List CVE-2022-20820
NVD CVE-2022-20820

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary