CVE-2021-28280

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.70% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 50.4% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-04-29 14:57Z5 YR AGO

Last updated

2024-08-03 21:40Z2 YR AGO

Reserved

2021-03-12

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
• CWE-352Cross-Site Request Forgery (CSRF)Compound

Data version

5.1

Document digest

71ee3423797bdee8fdc81a077c6f2fc7b8f1aef7e2f63859d5e502672e9afbf1

• anotepad.comhttps://anotepad.com/notes/2skndaytx_refsource_MISC
• github.comhttps://github.com/PHPFusion/PHPFusion/commit/08d6c2ea49bd06fcce32275252f5f25abe61965cx_refsource_MISC
• github.comhttps://github.com/PHPFusion/PHPFusion/commit/fda266c3bb35c650a8c4c51b6923abdfb66ef5cdx_refsource_MISC
• github.comhttps://github.com/PHPFusion/PHPFusion/commit/1c2b32321cf11ed1cd3ff835f8da0d172c849ce6x_refsource_MISC
• github.comhttps://github.com/PHPFusion/PHPFusion/commit/da9f89ae70219f357fba6fffd2dae1ec886d8a3bx_refsource_MISC