CVE-2026-63091

Signals

NVD · CVE-2026-7529 · 7.5 · The wiseCampaign – WooCommerce Conversions Made Easy plugin for WordPress is vulnerable to unauthorized modification and disclosure of data due to every one of NVD · CVE-2026-7456 · 6.5 · The Udimi Tools plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `ajax_disconnect()` function inNVD · CVE-2026-67623 · 8.8 · Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands by embedding a malicious core.fsmoNVD · CVE-2026-17506 · 7.2 · The Independent Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 404 not_found_url tracking parameter in versions up to, and CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07CISA KEV · CVE-2026-34486 · 9.8 · Apache Tomcat Missing Encryption of Sensitive Data Vulnerability · Added 2026-08-04 · Due 2026-08-07NVD · CVE-2026-7529 · 7.5 · The wiseCampaign – WooCommerce Conversions Made Easy plugin for WordPress is vulnerable to unauthorized modification and disclosure of data due to every one of NVD · CVE-2026-7456 · 6.5 · The Udimi Tools plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `ajax_disconnect()` function inNVD · CVE-2026-67623 · 8.8 · Mistral Vibe before 2.23.3 contains a remote code execution vulnerability that allows attackers to execute arbitrary commands by embedding a malicious core.fsmoNVD · CVE-2026-17506 · 7.2 · The Independent Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 404 not_found_url tracking parameter in versions up to, and CISA KEV · CVE-2026-18556 · 7.4 · N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability · Added 2026-08-04 · Due 2026-08-07CISA KEV · CVE-2026-34486 · 9.8 · Apache Tomcat Missing Encryption of Sensitive Data Vulnerability · Added 2026-08-04 · Due 2026-08-07

CVE Database · CVE-2026-63091

CVE-2026-63091

· MEDIUMAnalyzed

CVSS v3.1

6.5

CVSS v4.0

7.1

EPSS

0.29%

Published

Jul 20, 2026

Modified

Jul 30, 2026

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64_MAX, which results in a negative off_t value. Attackers can exploit the subsequent conversion to uint32_t, causing an approximately 4 GB requested read length and forcing the server to read beyond the end of the SSH channel data and write overread process memory into the uploaded file. In tested configurations, the disclosed data contains libc, libcrypto, and PIE pointers sufficient to derive their randomized base addresses, thereby bypassing ASLR and enabling reliable exploitation of memory corruption vulnerabilities in the same process.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

CWE-126CWE-190

Affected Products (3)

proftpd · proftpd (up to 1.3.9c)vulnerable

proftpd · proftpdvulnerable

References (6)

https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES

Release Notes

https://github.com/proftpd/proftpd/commit/b9b7dde1bcd74bc23366484d53856b67b8d6d95e

Patch