CVE-2020-13756

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

49.79% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 98.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2020-06-03 13:46Z6 YR AGO

Last updated

2025-11-03 17:30Z11 MO AGO

Reserved

2020-06-01

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-94Improper Control of Generation of Code ('Code Injection')Base

Data version

5.2

Document digest

bfc69b9352619ce4e37bd7193c4f7ccc3732ecbde04456ea1eb9a64df4ba16be

• github.comhttps://github.com/sabberworm/PHP-CSS-Parser/commit/2ebf59e8bfbf6cfc1653a5f0ed743b95062c62a4x_refsource_MISC
• github.comhttps://github.com/sabberworm/PHP-CSS-Parser/releases/tag/8.3.1x_refsource_MISC
• seclists.orghttp://seclists.org/fulldisclosure/2020/Jun/7x_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/157923/Sabberworm-PHP-CSS-Code-Injection.htmlx_refsource_MISC
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00013.html