PatchTheCVECVE-2020-26067: A vulnerability in the web-based interface of Cisco Webex Teams could allow an authenticated, remote atta
CVE-2020-26067 is a medium-severity flaw (CVSS 5.4) affecting webex teams. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability in the web-based interface of Cisco Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to improper validation of usernames. An attacker could exploit this vulnerability by creating an account that contains malicious HTML or script content and joining a space using the malicious account name. A successful exploit could allow the attacker to conduct cross
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 5.4 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.8% (top 43%) |
| CISA exploited list | No |
| Weakness | CWE-80 |
| Published | 2024-11-18 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2020-26067?
webex teams: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2020-26067 being exploited?
CVE-2020-26067 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2020-26067 affect?
CVE-2020-26067 affects webex teams. Severity is medium (CVSS 5.4). A vulnerability in the web-based interface of Cisco Webex Teams could allow an authenticated, remote attacker to conduct cross-site scripting attacks. The vulnerability is due to improper validation of usernames. An attacker could exp
How urgent is CVE-2020-26067?
Priority 33/100. No elevated risk signals yet.
Software pages
Cisco vulnerabilities · Cisco Webex vulnerabilities
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