Redpacketsecurity CVE-2026-111356: MacCMS v10 Password Recovery Vulnerability
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- •CVE-2026-111356 allows brute-force password recovery attacks on MacCMS v10.
- •The vulnerability affects versions up to 2026.1000.4056, posing a serious account takeover risk.
- •Immediate action is required to mitigate risks, including applying patches and monitoring account activity.
A vulnerability (CVE-2026-111356) in MacCMS v10 allows unauthenticated attackers to exploit the password recovery process. The flaw, affecting versions up to 2026.1000.4056, permits brute-force attacks on a six-digit recovery code, enabling account takeovers. Attackers can request recovery codes using a victim's email or phone number, with no limits on attempts, making it feasible to overwrite passwords. The vulnerability is classified as CWE-640 and CWE-307, indicating weak password recovery mechanisms and improper restriction of excessive authentication attempts. Publicly accessible MacCMS installations with member registration or password recovery enabled are at the highest risk. Immediate mitigation steps include applying vendor-supported fixes, disabling recovery features, and monitoring for unusual account activity. The CVSS score for this vulnerability is 9.1, marking it as. As of now, no proof-of-concept or has been confirmed.
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