CVE-2021-20721
CRITICAL
9.8
CVSS Score
Published: May 20, 2021 at 01:15 AM UTC
Updated: June 17, 2026 at 03:34 AM UTC
1 product affected across 1 vendorKonaWiki
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
KonaWiki2 versions prior to 2.2.4 allows a remote attacker to upload arbitrary files via unspecified vectors. If the file contains PHP scripts, arbitrary code may be executed.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.2.4
Affected range stops below 2.2.4, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN34232719/index.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-434
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