CVE-2026-4953
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 · uneditedA weakness has been identified in mingSoft MCMS up to 5.5.0. This issue affects the function catchImage of the file net/mingsoft/cms/action/BaseAction.java of the component Editor Endpoint. Executing a manipulation of the argument catchimage can lead to server-side request forgery. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.
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 confidenceServer-Side Request Forgery (SSRF) vulnerability in mingSoft MCMS up to version 5.5.0 allows remote attackers to manipulate the catchimage parameter in the Editor Endpoint's catchImage function (net/mingsoft/cms/action/BaseAction.java) to induce the server into making arbitrary HTTP requests to attacker-controlled destinations.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 if mingSoft MCMS is deployedCheck your web applications for the presence of mingSoft MCMS (look for application banners, installed packages, or the characteristic directory structure of this CMS)Affected if mingSoft MCMS is installed and running
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Determine the installed MCMS versionLocate the version information from the deployment (check application metadata, build files, or the 'about' page if available in the CMS interface)Affected if The version is 5.5.0 or any version prior to 5.5.0
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Verify the Editor Endpoint is accessibleCheck if the Editor Endpoint (typically reachable at an endpoint handling image-related operations) is exposed and accessible from the networkAffected if The Editor Endpoint is reachable without authentication or with low-privilege access
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Inspect the catchImage function configurationReview the application configuration and code around net/mingsoft/cms/action/BaseAction.java to determine if the catchImage function is enabled and processing the catchimage parameterAffected if The catchImage function is enabled and accepts user-supplied URLs through the catchimage parameter without strict validation
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Check for existing URL validation on catchimage parameterExamine any existing input validation, filtering, or allowlist logic applied to the catchimage parameter in requests to the Editor EndpointAffected if No allowlist-based URL filtering or strict input validation exists for the catchimage parameter
A user is affected if they are running mingSoft MCMS version 5.5.0 or earlier with the Editor Endpoint and catchImage function exposed and without strict allowlist validation on the catchimage parameter.
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 dataUpgrade to a version beyond 5.5.0 when available, or implement strict input validation and allowlist-based URL filtering on the catchimage parameter to restrict requests to trusted domains only.
- 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-2026-4953 — 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-2026-4953 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
- No spam, self-promotion, credentials, or personal data