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[PR #6257] [MERGED] Calibre-Web: Remove from Frontend during Critical Security Issues #6500

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opened 2025-11-20 07:10:52 -05:00 by saavagebueno · 0 comments
saavagebueno commented 2025-11-20 07:10:52 -05:00
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📋 Pull Request Information

Original PR: https://github.com/community-scripts/ProxmoxVE/pull/6257
Author: @MickLesk
Created: 7/26/2025
Status: ✅ Merged
Merged: 7/26/2025
Merged by: @michelroegl-brunner

Base: main ← Head: calibre

📝 Commits (1)

  • ae55ec0 Calibre-Web: Remove from Frontend during Critical Security Issues

📊 Changes

2 files changed (+0 additions, -107 deletions)

View changed files

➖ frontend/public/json/calibre-web.json (+0 -40)
➖ install/calibre-web-install.sh (+0 -67)

📄 Description

✍️ Description

remove Calibre Web from Frontend and Backup Install File

"2 weeks ago a security team attempted to make contact with the Calibre-Web dev and received no response. Today they have published the details of two vulnerabilities in the application, you can read about them here and here.

Since Calibre-Web hasn't had an update in some time, these vulnerabilities remain in the stable release that is used by the Helper Script.

Some info about the vulns:

  • the Blind Command Injection vulnerability requires a malicious, authenticated Admin user to set the path to a malicious command or script. The vulnerable function will blindly execute the command, since there is no validation. It's possible to get a reverse shell via this method, but again, this can only be achieved by authenticated admins, so it's mitigated somewhat.
  • the reDOS vulnerability allows any unauthenticated attacker to cause a denial of service by sending specially crafted input to the login form. Since this is possible without any authentication, Calibre-Web instances open to the internet are definitely vulnerable to this.

As far as I can tell, these vulns have only been patched in Autocaliweb - a fork of Calibre-Web and Calibre-Web Automated."

🔗 Related PR / Issue

Link: #6249

✅ Prerequisites (X in brackets)

  • Self-review completed – Code follows project standards.
  • Tested thoroughly – Changes work as expected.
  • No security risks – No hardcoded secrets, unnecessary privilege escalations, or permission issues.

🛠️ Type of Change (X in brackets)

  • 🐞 Bug fix – Resolves an issue without breaking functionality.
  • ✨ New feature – Adds new, non-breaking functionality.
  • 💥 Breaking change – Alters existing functionality in a way that may require updates.
  • 🆕 New script – A fully functional and tested script or script set.
  • 🌍 Website update – Changes to website-related JSON files or metadata.
  • 🔧 Refactoring / Code Cleanup – Improves readability or maintainability without changing functionality.
  • 📝 Documentation update – Changes to README, AppName.md, CONTRIBUTING.md, or other docs.

🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.

## 📋 Pull Request Information **Original PR:** https://github.com/community-scripts/ProxmoxVE/pull/6257 **Author:** [@MickLesk](https://github.com/MickLesk) **Created:** 7/26/2025 **Status:** ✅ Merged **Merged:** 7/26/2025 **Merged by:** [@michelroegl-brunner](https://github.com/michelroegl-brunner) **Base:** `main` ← **Head:** `calibre` --- ### 📝 Commits (1) - [`ae55ec0`](https://github.com/community-scripts/ProxmoxVE/commit/ae55ec0d850bab54e9470bbc649cc1c733c39df4) Calibre-Web: Remove from Frontend during Critical Security Issues ### 📊 Changes **2 files changed** (+0 additions, -107 deletions) <details> <summary>View changed files</summary> ➖ `frontend/public/json/calibre-web.json` (+0 -40) ➖ `install/calibre-web-install.sh` (+0 -67) </details> ### 📄 Description ## ✍️ Description remove Calibre Web from Frontend and Backup Install File "2 weeks ago a security team attempted to make contact with the Calibre-Web dev and received [no response](https://github.com/janeczku/calibre-web/issues/3427). Today they have published the details of two vulnerabilities in the application, you can read about them [here](https://fluidattacks.com/advisories/megadeth) and [here](https://fluidattacks.com/advisories/kino). Since Calibre-Web hasn't had an update in some time, these vulnerabilities remain in the stable release that is used by the Helper Script. Some info about the vulns: - the Blind Command Injection vulnerability requires a malicious, authenticated Admin user to set the path to a malicious command or script. The vulnerable function will blindly execute the command, since there is no validation. It's possible to get a reverse shell via this method, but again, this can only be achieved by authenticated admins, so it's mitigated somewhat. - the reDOS vulnerability allows any unauthenticated attacker to cause a denial of service by sending specially crafted input to the login form. Since this is possible without any authentication, Calibre-Web instances open to the internet are definitely vulnerable to this. As far as I can tell, these vulns have only been patched in [Autocaliweb](https://github.com/gelbphoenix/autocaliweb) - a fork of Calibre-Web and Calibre-Web Automated." ## 🔗 Related PR / Issue Link: #6249 ## ✅ Prerequisites (**X** in brackets) - [x] **Self-review completed** – Code follows project standards. - [x] **Tested thoroughly** – Changes work as expected. - [x] **No security risks** – No hardcoded secrets, unnecessary privilege escalations, or permission issues. --- ## 🛠️ Type of Change (**X** in brackets) - [ ] 🐞 **Bug fix** – Resolves an issue without breaking functionality. - [ ] ✨ **New feature** – Adds new, non-breaking functionality. - [x] 💥 **Breaking change** – Alters existing functionality in a way that may require updates. - [ ] 🆕 **New script** – A fully functional and tested script or script set. - [ ] 🌍 **Website update** – Changes to website-related JSON files or metadata. - [ ] 🔧 **Refactoring / Code Cleanup** – Improves readability or maintainability without changing functionality. - [ ] 📝 **Documentation update** – Changes to `README`, `AppName.md`, `CONTRIBUTING.md`, or other docs. --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
saavagebueno added the pull-request label 2025-11-20 07:10:52 -05:00
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Reference: SVI/ProxmoxVE#6500
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