CVE-2023-0434 | Improper Input Validation in pyload/pyload

Exp

Improper Input Validation in GitHub repository pyload/pyload prior to 0.5.0b3.dev40.

Published: 2023-01-22 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-0434 is rated High Exploit Risk (63.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.82%). 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-2023-0434

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

Exploit prediction scoring system (EPSS) score for CVE-2023-0434

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 0.53% 0.82% +0.28%
2 2026-01-24 0.81% 0.53% -0.28%
3 2026-01-23 — 0.81% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-0434

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
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:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.4 3.0 MEDIUM
CVSS:3.0/AV:P/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
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:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.2 5.2 [email protected]

Weakness enumeration for CVE-2023-0434

GitHub Security Advisory for CVE-2023-0434

GHSA-x9vc-5q77-m7x4 · Severity: medium · Ecosystem: pip — Improper Input Validation in pyload-ng

Affected software / configurations for CVE-2023-0434

Vendor Product Version Raw CPE
pyload pyload <= 0.4.9 cpe:2.3:a:pyload:pyload:*:*:*:*:*:*:*:*
pyload pyload 0.5.0 cpe:2.3:a:pyload:pyload:0.5.0:beta1:*:*:*:*:*:*
pyload pyload 0.5.0 cpe:2.3:a:pyload:pyload:0.5.0:beta2:*:*:*:*:*:*

References for CVE-2023-0434

cvelogic Threat Intelligence