EUVD-2026-41758
GHSA-pw2m-p9pg-9xr6
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable XSS requiring authenticated attacker (PR:L) and victim interaction (UI:R); scope changes as script executes in victim browser, yielding limited C and I impact.
Primary rating from Vendor (vuldb).
CVSS VectorVendor: vuldb
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
1DescriptionCVE.org
A security vulnerability has been detected in mjperpinosa stumasy up to 327d1b0f2915ba79d7ef8ebb74553e987609d9be. This affects the function add_definition of the file application/PHP/objects/notes/add_into_dictionary.php. Such manipulation of the argument reference leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
Cross-site scripting in stumasy's dictionary notes feature allows a low-privileged, remote attacker to inject malicious JavaScript via the unsanitized reference argument of the add_definition function. The vulnerability affects the PHP web application at commit 327d1b0f2915ba79d7ef8ebb74553e987609d9be and earlier, with exploit code publicly disclosed via VulDB submission 849495. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a valid authenticated session on the stumasy application (PR:L confirmed by CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The aggregate risk is low-to-negligible for most environments. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated stumasy user crafts a malicious value for the `reference` parameter in a request to the add_definition endpoint, embedding a JavaScript payload (e.g., a session-hijacking script). When a second authenticated user views the dictionary entry containing the injected reference, their browser executes the attacker's script in the stumasy application context, potentially exposing their session token. … |
| Remediation | No vendor-released patch has been identified at time of analysis; the project maintainer has not responded to the responsible disclosure reported via GitHub issue #8 (https://github.com/mjperpinosa/stumasy/issues/8). … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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