CVE-2019-12581
UnknownEPSS 6.40%
Last modified
CVE-2019-12581 is a vulnerability of currently unknown severity. A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in selected Zyxel ZyWall, USG, and UAG devices allows remote attackers to inject arbitrary web script or HTML via the err_msg parameter.. EPSS estimates a 6.40% chance of exploitation in the next 30 days.
Description
A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in selected Zyxel ZyWall, USG, and UAG devices allows remote attackers to inject arbitrary web script or HTML via the err_msg parameter.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Uag2100 Firmware | <= 4.18\(aaiz.1\)c0 |
| Zyxel | Uag4100 Firmware | <= 4.18\(aatd.1\)c0 |
| Zyxel | Uag5100 Firmware | <= 4.18\(aapn.1\)c0 |
| Zyxel | Usg110 Firmware | <= 4.30 |
| Zyxel | Usg210 Firmware | <= 4.30 |
| Zyxel | Usg310 Firmware | <= 4.30 |
| Zyxel | Usg1100 Firmware | <= 4.30 |
| Zyxel | Usg1900 Firmware | <= 4.30 |
| Zyxel | Usg2200-Vpn Firmware | <= 4.30 |
References
- https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/Exploit, Third Party Advisory
- https://sec-consult.com/en/blog/advisories/reflected-cross-site-scripting-in-zxel-zywall/index.htmlExploit, Patch, Third Party Advisory
- https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtmlPatch, Vendor Advisory
- https://www.zyxel.com/us/en/Vendor Advisory
- https://n-thumann.de/blog/zyxel-gateways-missing-access-control-in-account-generator-xss/Exploit, Third Party Advisory
- https://sec-consult.com/en/blog/advisories/reflected-cross-site-scripting-in-zxel-zywall/index.htmlExploit, Patch, Third Party Advisory
- https://www.zyxel.com/support/vulnerabilities-related-to-the-Free-Time-feature.shtmlPatch, Vendor Advisory
- https://www.zyxel.com/us/en/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-12581?
A reflective Cross-site scripting (XSS) vulnerability in the free_time_failed.cgi CGI program in selected Zyxel ZyWall, USG, and UAG devices allows remote attackers to inject arbitrary web script or HTML via the err_msg parameter.
How severe is CVE-2019-12581?
Severity scoring for CVE-2019-12581 is pending analysis. The EPSS model estimates a 6.40% probability of exploitation in the next 30 days.
How do I fix CVE-2019-12581?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2019-12581?
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Scan your code nowSource: NVD / NIST