CVE-2023-42247
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 · uneditedSelesta Visual Access Manager < 4.42.2 is vulnerable to Cross Site Scripting (XSS) via monitor/s_monitor_map.php.
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 · high confidenceSelesta Visual Access Manager versions prior to 4.42.2 contain a Cross Site Scripting (XSS) vulnerability in the monitor/s_monitor_map.php endpoint. An attacker could inject malicious JavaScript code through this parameter, which would be executed in the context of other users' sessions when they access the affected page.
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< 4.42.2CVSS 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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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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Identify the installed version of Selesta Visual Access ManagerLocate the version information for your Selesta Visual Access Manager installation. This is typically found in the product documentation, an admin panel, or a version file included with the installation. Compare the discovered version number against the affected range (versions prior to 4.42.2).Affected if The installed version is lower than 4.42.2.
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Verify the presence of the affected endpointCheck if the file monitor/s_monitor_map.php exists within your Selesta Visual Access Manager web directory. This can be done by attempting to access the URL path /monitor/s_monitor_map.php on your server or by listing the files in the web application directory.Affected if The file monitor/s_monitor_map.php exists in the installation.
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Confirm the endpoint is accessibleDetermine whether the monitor/s_monitor_map.php endpoint is reachable from the network. This may involve checking web server configuration, access control lists, or firewall rules that allow or block access to this path.Affected if The endpoint is accessible to users (no access restrictions in place).
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Review access logs for suspicious requestsExamine your web server or application access logs for any requests to monitor/s_monitor_map.php that contain unusual parameter values, JavaScript tags, or encoded payloads that may indicate exploitation attempts.Affected if Logs show requests with potential XSS payloads targeting this endpoint.
Your environment is affected if Selesta Visual Access Manager version is below 4.42.2 and the monitor/s_monitor_map.php endpoint is accessible without restrictions.
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 data4.42.2
Upgrade Selesta Visual Access Manager to version 4.42.2 or later to remediate this XSS vulnerability. Until the patch is applied, consider disabling or restricting access to the affected monitor/s_monitor_map.php endpoint.
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-42247 — 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-2023-42247 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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