EUVD-2026-77139
GHSA-mxm9-vwr5-58fg
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
XSS requires low-privilege authentication and victim user interaction; scope changes to the victim's browser context enabling session and content manipulation.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
4DescriptionCVE.org
A security flaw has been discovered in Totolink A3002MU Hh-B20211125.1046. This affects an unknown part of the component Anchor Tag Handler. Performing a manipulation results in cross site scripting. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
AnalysisAI
Cross-site scripting in the Anchor Tag Handler of Totolink A3002MU firmware version Hh-B20211125.1046 allows network-accessible attackers with low-privilege credentials to inject malicious scripts into the router's web management interface, which execute in a victim's browser upon interaction. A public proof-of-concept exploit has been published on GitHub, lowering the technical barrier for exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to hold a low-privilege authenticated session on the Totolink A3002MU web management interface, as confirmed by PR:L in the CVSS 4.0 vector - fully unauthenticated exploitation is not indicated. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:P/E:P) scores a base of 5.1, reflecting meaningful but bounded risk: the attack requires authenticated access at low privilege and partial user interaction, ruling out fully unauthenticated or automated exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at the time of analysis - the available references include only the VulDB report (https://vuldb.com/vuln/403186) and a GitHub proof-of-concept, with no corresponding Totolink firmware update or security advisory. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Buffer overflow in TOTOLINK A3002MU router firmware version Hh-B20211125.1046 allows authenticated remote attackers to c
Stack-based buffer overflow in the Totolink A3002MU router's boa HTTP server allows a network-adjacent authenticated att
Stack-based buffer overflow in Totolink A3002MU router firmware B20211125.1046 allows authenticated remote attackers to
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today