The flaws comprise CVE-2026-81821, use of a hard-coded cryptographic key that allows anyone with read access to PIMBoards project files to decrypt and view sensitive information; CVE-2026-81822, use of a broken or risky cryptographic algorithm; CVE-2026-81823, missing authorization; and CVE-2026-81824, a cross-site scripting flaw — chained, they allow information disclosure, hash brute-forcing or arbitrary code execution in a browser session.