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Vulnerability details: VCID-69dj-kyvu-7qdm
Vulnerability ID VCID-69dj-kyvu-7qdm
Aliases CVE-2021-31635
GHSA-cgmm-c2m9-ff7r
Summary Server-Side Template Injection (SSTI) vulnerability in jFinal v.4.9.08 allows a remote attacker to execute arbitrary code via the template function.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-31635
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-31635
epss 0.01684 https://api.first.org/data/v1/epss?cve=CVE-2021-31635
cvssv3.1 9.8 https://gitee.com/jfinal/jfinal/issues/I3IXLE
generic_textual CRITICAL https://gitee.com/jfinal/jfinal/issues/I3IXLE
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-cgmm-c2m9-ff7r
cvssv3.1 9.8 https://github.com/jfinal/jfinal/issues/187
generic_textual CRITICAL https://github.com/jfinal/jfinal/issues/187
ssvc Track https://github.com/jfinal/jfinal/issues/187
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2021-31635
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2021-31635
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-31635
https://gitee.com/jfinal/jfinal/issues/I3IXLE
https://nvd.nist.gov/vuln/detail/CVE-2021-31635
187 https://github.com/jfinal/jfinal/issues/187
GHSA-cgmm-c2m9-ff7r https://github.com/advisories/GHSA-cgmm-c2m9-ff7r
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://gitee.com/jfinal/jfinal/issues/I3IXLE
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/jfinal/jfinal/issues/187
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2024-12-05T15:31:39Z/ Found at https://github.com/jfinal/jfinal/issues/187
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2021-31635
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.82613
EPSS Score 0.01684
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:32:22.941110+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2021/31xxx/CVE-2021-31635.json 38.6.0