CVE-2020-21244

Exp

An issue was discovered in FrontAccounting 2.4.7. There is a Directory Traversal vulnerability that can empty folder via admin/inst_lang.php.

Published: 2020-09-30 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-21244 is rated Exploit Available (55.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.00%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-21244

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-21244

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.52% 1.00% +0.48%
2 2025-03-30 0.62% 0.52% -0.10%
3 2025-03-29 — 0.62% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-21244

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.2 3.6 [email protected]
5.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 4.9 [email protected]

Weakness enumeration for CVE-2020-21244

OS Trackers for CVE-2020-21244

vendor priority summary link
ubuntu medium CVE-2020-21244 medium priority: Ubuntu including 1 source packages (frontaccounting), 5 status rows across 5 suites (bionic, focal, trusty, upstream, xenial): DNE 4, needs-triage 1. https://ubuntu.com/security/CVE-2020-21244

Affected software / configurations for CVE-2020-21244

Vendor Product Version Raw CPE
frontaccounting frontaccounting 2.4.7 cpe:2.3:a:frontaccounting:frontaccounting:2.4.7:*:*:*:*:*:*:*

References for CVE-2020-21244

URL Tags
https://github.com/FrontAccountingERP/FA/issues/40 Exploit Issue Tracking Third Party Advisory
cvelogic Threat Intelligence