CVE-2021-40973 json
Cross-site scripting (XSS) vulnerability in templates/installer/step-004.inc.php in spotweb 1.5.1 and below allow remote attackers to injec…
published 2021-10-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28127
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
Cross-site scripting (XSS) vulnerability in templates/installer/step-004.inc.php in spotweb 1.5.1 and below allow remote attackers to inject arbitrary web script or HTML via the lastname parameter.
Exploit prediction
2.25% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Spotweb <= 1.5.1 - Cross Site Scripting nuclei detection template
- github.com https://github.com/spotweb/spotweb/issues/711 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/spotweb/spotweb/issues/711
exploit, issue-tracking, third-party-advisory
-
github.com
/spotweb/spotweb
third-party-advisory
Sources
- CVE List CVE-2021-40973
- NVD CVE-2021-40973
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