CVE-2024-21584
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 · uneditedPleasanter 1.3.49.0 and earlier contains a cross-site scripting vulnerability. If an attacker tricks the user to access the product with a specially crafted URL and perform a specific operation, an arbitrary script may be executed on the web browser of the user.
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 · moderate confidencePleasanter 1.3.49.0 and earlier contains a stored or reflected cross-site scripting (XSS) vulnerability. An attacker can craft a malicious URL containing JavaScript payload that executes when the victim accesses the URL and performs a specific operation, allowing arbitrary script execution in the user's browser session.
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<= 1.3.49.0CVSS 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 Pleasanter installation and versionLocate the Pleasanter installation directory and check the version file or assembly information. Common locations include the application root folder where version.txt, package.json, or the main DLL metadata contains version details.Affected if The installed version is 1.3.49.0 or any earlier version (e.g., 1.3.48.0, 1.3.40.0, etc.).
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Verify web interface accessibilityConfirm that the Pleasanter web application is accessible and running. This vulnerability requires a user to access a malicious URL and perform a specific operation.Affected if Pleasanter web interface is exposed and users can access it.
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Check for XSS protection configurationInspect the web.config or appsettings.json file in the Pleasanter installation directory for security-related settings such as request validation, input sanitization, or output encoding configurations.Affected if Input validation and output encoding settings are disabled, missing, or not configured for XSS protection.
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Review HTTP request loggingExamine web server or application logs for unusual URL patterns containing script tags, javascript: protocols, or other XSS vectors in query parameters.Affected if Logs show evidence of malicious URL patterns with XSS payloads targeting Pleasanter endpoints.
A user is affected if Pleasanter version 1.3.49.0 or earlier is running, the web interface is accessible, and the application lacks proper XSS protection in its configuration.
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.
dbcve · scopedUpgrade Pleasanter to a version newer than 1.3.49.0 when available. Alternatively, implement output encoding and input validation, or deploy a WAF rule to filter malicious URL parameters.
Pleasanter 1.3.50.0 or later
- Back up the current Pleasanter database and configuration files before proceeding with any upgrade.
- Download the latest version of Pleasanter from the official vendor website (pleasanter.org).
- Follow the official upgrade instructions provided in the Pleasanter documentation to install the new version.
- After upgrading, verify that the application functions correctly and test that the XSS vulnerability is no longer present.
- Ensure that any custom configurations or extensions are compatible with the new version.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-21584 — 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-2024-21584 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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