November 14, 2026

CVE Watchtower

CVE-2026-90497Fengoffice Feng Office Cross-site Scripting (XSS)

NVD

Vulnerability Summary

A vulnerability was determined in Fengoffice Feng Office up to 3.11.13.11. Affected by this vulnerability is the function getTitle of the file application/views/task/add_task.php of the component Task Title Output. Executing a manipulation of the argument og_objects.name can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity Level
LOW(3.5)
Published Date
Sep 13, 2026
Last Modified
Sep 14, 2026
Exploitation Status
Public exploit available
EPSS Score (30-Day)
0.33%Probability
Root Weakness (CWE)
CWE-79: Cross-site Scripting (XSS) β†—
The software does not neutralize user-controllable input before it is placed in output that is used as a web page.
CWE-94: Code Injection β†—
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended syntax or behavior.
CVSS v4.0 Base Metrics — Score 5.1 (MEDIUM)
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
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredLow
User InteractionPassive
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)Low
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 3.5)
CVSS v3.1 Base Metrics — Score 3.5 (LOW)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • Fengoffice Feng Office 3.11.13.0
  • Fengoffice Feng Office 3.11.13.1
  • Fengoffice Feng Office 3.11.13.2
  • Fengoffice Feng Office 3.11.13.3
  • Fengoffice Feng Office 3.11.13.4
  • Fengoffice Feng Office 3.11.13.5
  • Fengoffice Feng Office 3.11.13.6
  • Fengoffice Feng Office 3.11.13.7
  • Fengoffice Feng Office 3.11.13.8
  • Fengoffice Feng Office 3.11.13.9
  • Fengoffice Feng Office 3.11.13.10
  • Fengoffice Feng Office 3.11.13.11
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Prioritize this fix. Exploit code is public, so attacks can follow quickly.

  1. Check whether you run Fengoffice Feng Office and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.
  4. Review logs and exposed services for signs of earlier compromise.

Timeline

  • Sep 13, 2026Published
  • Sep 14, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 01:09 UTC