TI-2026-80301 Aliases CVE-2026-113438 GHSA-6pxx-w74c-j39c

Missing password verification in Pleasanter LDAP authentication

LOW 36CWE-304Published 2026-10-26 · Updated 2026-10-26

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Implem Inc. Pleasanter from 1.1.0.0 through 1.5.9.0 fails to properly verify passwords in LDAP authentication when processing specially crafted requests under certain configurations. An unauthenticated remote attacker can log in with only a valid Login ID and no password, bypassing LDAP authentication, and can then view, alter or delete information with the privileges of that account. The weakness is classified as CWE-304.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Pleasanter provided fails to properly verify passwords in LDAP authentication when processing specially crafted requests under certain configurations. If exploited, an attacker may bypass LDAP authentication by providing only a valid Login ID, without a password. As a result, an attacker may view, alter or delete information stored in the product with the privilege of the account used to log in.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00239 15th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Implem Inc.	Pleasanter	1.1.0.0 – 1.5.9.0	—	No fix listed	CNA

Pleasanter VendorImplem Inc. Affected 1.1.0.0 – 1.5.9.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:pleasanter:pleasanter::::::::	—	—	Implem Inc.

cpe:2.3:a:pleasanter:pleasanter:*:*:*:*:*:*:*:* Versions — — ·Implem Inc.

Remediation

The sources list no fixed version for Pleasanter.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

2026-10-26 Threatist record created from CVE-2026-113438
2026-10-26 CISA SSVC decision points changed
2026-10-26 Priority changed: MEDIUM → LOW
2026-10-27 Alias added: GHSA-6pxx-w74c-j39c

References

Other 2

TI-2023-15889 Path traversal in Implem Inc. Pleasanter CVSS 3.1MEDIUM 6.5
TI-2023-25184 Open redirect in Implem Inc. Pleasanter CVSS 3.1MEDIUM 6.1
TI-2024-14313 Cross-site scripting in Implem Inc. Pleasanter CVSS 3.1MEDIUM 6.1
TI-2023-14572 Cross-site scripting in Implem Inc. Pleasanter CVSS 3.1MEDIUM 5.4
TI-2023-17265 Cross-site scripting in Implem Inc. Pleasanter CVSS 3.1MEDIUM 5.4
TI-2023-15888 Cross-site scripting in Implem Inc. Pleasanter CVSS 3.1MEDIUM 5.4

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences