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CVE-2026-102539— Super Productivity: SuperSync E2EE setup uploads and stores all user operations in plaintext before password is set

Quick assessment

Affected
super-productivity super-productivity
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Super Productivity 是一款高级待办事项应用，集成了时间盒管理（timeboxing）和时间追踪功能。从版本 17.3.0 至 18.13.1，SuperSync 端到端加密（E2EE）初始化流程会在用户设置加密密码之前调用 ，导致操作上传路径以明文形式传输并存储所有用户操作。这些被暴露的操作可能包含私有的任务内容以及关联的 issue 提供程序凭据，包括可复用的密码、API 令牌和应用专用密码。已完成端到端加密设置的用户其明文操作会被删除；而跳过密码设置步骤的用户则可能导致数据被无限期保留。执行“

CVSS 5.7 · Medium EPSS 0.13% · P2

Affected Version Matrix 1

VendorProduct Version RangeStatus
super-productivity super-productivity >= 17.3.0, < 18.13.1 affected
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I. Basic Information for CVE-2026-102539

Vulnerability Information
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Vulnerability Title
Super Productivity: SuperSync E2EE setup uploads and stores all user operations in plaintext before password is set
Source: CVE Program / CVE List V5
Vulnerability Description
Super Productivity is an advanced todo list app with integrated timeboxing and time tracking capabilities. From 17.3.0 until 18.13.1, the SuperSync end-to-end encryption setup calls sync(true) before a user sets an encryption password, causing the operation-upload path to transmit and store all user operations in plaintext. The exposed operations can include private task content and connected issue-provider credentials, including reusable passwords, API tokens, and app passwords. Users who complete E2EE setup have the plaintext operations deleted, while users who leave the password-setting step can leave the data stored indefinitely. The Disable SuperSync action did not remove plaintext that had already been uploaded. Routing and causal metadata remain plaintext by design and are not part of this vulnerability. This issue is fixed in version 18.13.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据的明文存储
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
super-productivity super-productivity >= 17.3.0, < 18.13.1 -

II. Public POCs for CVE-2026-102539

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III. Intelligence Information for CVE-2026-102539

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Patches & Fixes for CVE-2026-102539 (2)

Vendor Advisories for CVE-2026-102539 (1)

Vendor Pages for CVE-2026-102539 (1)

IV. Related Vulnerabilities

Same product: super-productivity
Same vendor: super-productivity
Same weakness: CWE-312

V. Comments for CVE-2026-102539

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