Cyber Resilience

CVE-2023-0055

Pyload 0.5.0

Public PoC
Published
04 January 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0044 36th percentile
Risk Priority 44 floored blend · peak EPSS

Summary

CVE-2023-0055 is a medium-severity Sensitive Cookie in HTTPS Session Without 'Secure' Attribute (CWE-614) vulnerability in Pyload Pyload. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Network Sniffing (T1040); ranked at the 36th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Sensitive Cookie in HTTPS Session Without 'Secure' Attribute in GitHub repository pyload/pyload prior to 0.5.0b3.dev32.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1040 Network Sniffing Credential Access
Adversaries may passively sniff network traffic to capture information about an environment, including authentication material passed over the network.
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-0227Same product: Pyload Pyload
CVE-2026-41133Same product: Pyload Pyload
CVE-2024-21644Same product: Pyload Pyload
CVE-2023-0434Same product: Pyload Pyload
CVE-2024-32880Same product: Pyload Pyload
CVE-2023-0297Same product: Pyload Pyload
CVE-2026-33992Same product: Pyload Pyload
CVE-2026-40071Same product: Pyload Pyload
CVE-2023-0435Same product: Pyload Pyload
CVE-2024-47821Same product: Pyload Pyload

Affected Assets

pyload
pyload
0.5.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V3.3.1

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-319 CWE-614

Eliminates cleartext exposure of session identifiers or tokens that would allow hijacking.

addresses: CWE-319 CWE-614

The control explicitly requires confidentiality protection for transmitted information, preventing cleartext exposure of sensitive data.

addresses: CWE-319

Role-based training covers secure transmission methods, mitigating cleartext transmission of sensitive data.

addresses: CWE-319

By requiring documented security controls for information exchanges, the control reduces the risk of cleartext transmission of sensitive data.

addresses: CWE-319

Mapping transmission actions in data flows helps prevent cleartext transmission of sensitive information.

addresses: CWE-319

Settings can enforce secure transmission protocols to prevent cleartext transmission of sensitive data.

addresses: CWE-319

Policy addresses secure transport and handling of media to avoid cleartext transmission of sensitive information.

addresses: CWE-319

Enforces safeguards against cleartext transmission of CUI when data leaves organizational boundaries to external systems.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.DS-02 full match
prevents

Encryption of data-in-transit directly prevents cleartext transmission while the control also addresses integrity and availability.

PR.PS-01 mostly match
prevents

Enforcing hardened configuration baselines includes requiring the Secure flag on sensitive cookies.

PR.PS-06 mostly match
prevents

Secure SDLC practices explicitly require correct use of security attributes such as the cookie Secure flag.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Specifying encryption and other security technology for network services prevents transmission of sensitive information in cleartext over potentially untrusted channels.

prevents

Mandating cryptographic protection and stronger authentication on public networks stops the transmission of plaintext sensitive information.

mitigates

Specifying communications-security requirements and secure remote-access methods (including encryption expectations) prevents the transmission of sensitive data in cleartext over home or public networks.

mitigates

Armoured conduits, electromagnetic shielding and locked enclosures make passive eavesdropping on unencrypted traffic traversing the cables more difficult, mitigating exposure of sensitive data in transit.

mitigates

Use of cryptography control mandates encryption in transit, which HTTPS provides, but does not specifically require the Secure cookie attribute.

prevents

Application security requirements can include cookie security settings, but the control is broader and does not explicitly mandate the Secure attribute.

References