Webex MeetingsApplication · Cisco
CVE-2022-20852
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMultiple 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · low confidenceMultiple vulnerabilities in Cisco Webex Meetings web interface allow cross-site scripting (XSS) attacks, where malicious scripts are injected into pages viewed by users, and frame hijacking attacks, where the web interface is embedded in unauthorized frames to manipulate user interactions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Webex MeetingsApplication
all versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Cisco Webex Meetings deploymentInventory your organization's SaaS applications and collaboration tools to identify if Cisco Webex Meetings is in active use. Check with your IT or procurement team for any Webex subscriptions or deployments.Affected if Cisco Webex Meetings is deployed and active in the organization
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Identify web interface accessibilityDetermine if users access Webex through the web browser interface (typically at webex.com or your organization's custom Webex URL) rather than only through desktop/mobile client applications.Affected if The web interface is accessible and users authenticate through it
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Check network exposureReview firewall, proxy, or CASB configurations to determine if the Webex web interface URLs (webex.com, *.webex.com) are reachable from corporate networks or if conditional access policies restrict web-based access.Affected if The Webex web interface is reachable from user browsers on the network
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Verify user access patternsReview authentication logs or SSO logs for Webex to confirm users are actively logging in through the web interface versus only using installed desktop or mobile applications.Affected if Users are authenticating to Webex through browser-based sessions
If Cisco Webex Meetings is deployed and its web interface is accessible to users, the environment is affected since all versions contain the XSS and frame hijacking vulnerabilities.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the official Cisco patch when available; until then, users should avoid the web interface and not click untrusted links to Webex Meetings sites.
Fix this in Webex Meetings
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-20852 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2022-20852 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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