CVE-2023-28341
MEDIUMCVE-2023-28341 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in zohocorp manageengine applications manager. EPSS puts its 30-day exploitation probability at 98.7% (100th percentile). O3 Security detects and blocks CVE-2023-28341 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.
Stored Cross site scripting (XSS) vulnerability in Zoho ManageEngine Applications Manager through 16340 allows an unauthenticated user to inject malicious javascript on the incorrect…
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-28341.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2023-28341 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 0 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Description
Stored Cross site scripting (XSS) vulnerability in Zoho ManageEngine Applications Manager through 16340 allows an unauthenticated user to inject malicious javascript on the incorrect login details page.
Affected Products
manageengine applications managerzohocorpDetection & mitigation playbook
Vendor / applianceDetect
Inventory every zohocorp manageengine applications manager deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.
Fix
Apply the zohocorp manageengine applications manager security patch or hotfix for CVE-2023-28341 on the affected version, following the vendor advisory for your exact build.
Workarounds
Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.
How O3 protects you
O3 detects and blocks CVE-2023-28341 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.
Tailored to CVE-2023-28341. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2023-28341 being exploited in your environment?
O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2023-28341 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.