XSS in Wago 0852-0303
CVE-2021-20994
In multiple managed switches by WAGO in different versions an attacker may trick a legitimate user to click a link to inject possible malicious code into the Web-Based Management.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Wago 0852-0303 — versions unspecified
- Wago 0852-0303 Firmware
- Wago 0852-1305 — versions unspecified
- Wago 0852-1305/000-001 — versions unspecified
- Wago 0852-1305\/000-001
- Wago 0852-1305\/000-001 Firmware
- Wago 0852-1305 Firmware
- Wago 0852-1505 — versions unspecified
- Wago 0852-1505/000-001 — versions unspecified
- Wago 0852-1505\/000-001
Weakness classification (CWE)
References
- cert.vde.com/en-us/advisories/vde-2021-013 (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20994?
- CVE-2021-20994 is a high-severity vulnerability in Wago 0852-0303, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2021-05-13.
- How severe is CVE-2021-20994?
- High severity. CVSS v3 base score is 8.8 out of 10.