CVE-2020-26287

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

1.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 71.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2020-12-28 23:30Z5 YR AGO

Last updated

2024-08-04 15:56Z2 YR AGO

Reserved

2020-10-01

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

b4d91e0c28c43530d5012ef3fbae1e45fdaf133fe034bc6a21bf208416976d88

• github.comhttps://github.com/hedgedoc/hedgedoc/releases/tag/1.7.1x_refsource_MISC
• github.comhttps://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-g6w6-7xf9-m95px_refsource_CONFIRM
• github.comhttps://github.com/hackmdio/codimd/issues/1630x_refsource_MISC
• github.comhttps://github.com/Alemmi/ctf-writeups/blob/main/hxpctf-2020/hackme/solution.mdx_refsource_MISC
• github.comhttps://github.com/hedgedoc/hedgedoc/commit/58276ebbf4504a682454a3686dcaff88bc1069d4x_refsource_MISC