CVE-2020-26799 json
A reflected cross-site scripting (XSS) vulnerability was discovered in index.php on Luxcal 4.5.2 which allows an unauthenticated attacker t…
published 2025-07-21 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2020-19335
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
A reflected cross-site scripting (XSS) vulnerability was discovered in index.php on Luxcal 4.5.2 which allows an unauthenticated attacker to steal other users' data.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 15 mo ago
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
Sources
- CVE List CVE-2020-26799
- NVD CVE-2020-26799
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