CVE-2021-20724 json
Reflected cross-site scripting vulnerability in the admin page of [Telop01] free edition ver1.0.1 and earlier allows a remote attacker to i…
published 2021-05-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8138
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
Reflected cross-site scripting vulnerability in the admin page of [Telop01] free edition ver1.0.1 and earlier allows a remote attacker to inject an arbitrary script via unspecified vectors.
Exploit prediction
0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 |
Affected products
- PHP Factory [Telop01] free edition
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
php-factory.net
/telop/01.php
product, third-party-advisory
-
jvn.jp
/en/jp/JVN53910556/index.html
third-party-advisory
Sources
- CVE List CVE-2021-20724
- NVD CVE-2021-20724
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.