CVE-2021-26636
Stored XSS and SQL injection vulnerability in MaxBoard could lead to occur Remote Code Execution, which could lead to information exposure and privilege escalation.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Stored XSS and SQL injection vulnerability in MaxBoard could lead to occur Remote Code Execution, which could lead to information exposure and privilege escalation.
- CVSS 3.1
- 9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 1.52% probability · 74th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79, CWE-89
- Affected
- maxb/maxboard
- Source
- vuln@krcert.or.kr
EPSS 1.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66781Third Party Advisory
- https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66781Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.