Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
26 results
May 3, 2026A flaw has been found in crocodilestick Calibre-Web-Automated up to 4.0.6.CVE-2026-7714 · Other software · crocodilestick · reported by VulDBMedium 5.5
A flaw has been found in crocodilestick Calibre-Web-Automated up to 4.0.6. Affected by this issue is some unknown functionality of the file cps/cwa_functions.py of the component Admin Endpoint. This manipulation causes missing authentication. It is possible to initiate the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through a pull request but has not reacted yet.
- Product
- Calibre-Web-Automated
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
May 3, 2026A vulnerability was detected in crocodilestick Calibre-Web-Automated up to 4.0.6.CVE-2026-7713 · Other software · crocodilestick · reported by VulDBLow 2.1
A vulnerability was detected in crocodilestick Calibre-Web-Automated up to 4.0.6. Affected by this vulnerability is the function generate_auth_token of the file cps/kobo_auth.py of the component Kobo auth-token Route. The manipulation results in improper authorization. The attack may be performed from remote. The exploit is now public and may be used. Upgrading to version 4.0.7 addresses this issue. The patch is identified as 9f50bb2c16160564c9f8777dc2ceed3eb95e4807. The affected component should be upgraded.
- Product
- Calibre-Web-Automated
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
May 3, 2026A vulnerability was identified in janeczku Calibre-Web up to 0.6.26.CVE-2026-7709 · Other software · janeczku · reported by VulDBLow 2.1
A vulnerability was identified in janeczku Calibre-Web up to 0.6.26. The impacted element is the function generate_auth_token of the file cps/kobo_auth.py of the component Endpoint. Such manipulation of the argument user_id leads to improper authorization. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Product
- Calibre-Web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recorddrive.google.comvuldb.com
Dec 2, 2025A Stored Cross-Site Scripting (XSS) vulnerability in Calibre-Web v0.6.25 allows attackers to inject malicious JavaScript into the 'username' field during user cCVE-2025-65858 · Other software · Janeczku · reported by MITRELow 3.5
A Stored Cross-Site Scripting (XSS) vulnerability in Calibre-Web v0.6.25 allows attackers to inject malicious JavaScript into the 'username' field during user creation. The payload is stored unsanitized and later executed when the /ajax/listusers endpoint is accessed.
- Product
- Calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 15, 2024A Cross-site Scripting (XSS) vulnerability exists in janeczku/calibre-web, specifically in the file `edit_books.js`.CVE-2021-3988 · Other software · janeczku · reported by security@huntr.devMedium 6.1
A Cross-site Scripting (XSS) vulnerability exists in janeczku/calibre-web, specifically in the file `edit_books.js`. The vulnerability occurs when editing book properties, such as uploading a cover or a format. The affected code directly inserts user input into the DOM without proper sanitization, allowing attackers to execute arbitrary JavaScript code. This can lead to various attacks, including stealing cookies. The issue is present in the code handling the `#btn-upload-cover` change event.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 15, 2024An improper access control vulnerability exists in janeczku/calibre-web.CVE-2021-3987 · Other software · janeczku · reported by security@huntr.devMedium 4.3
An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 15, 2024A vulnerability in janeczku/calibre-web allows unauthorized users to view the names of private shelves belonging to other users.CVE-2021-3986 · Other software · janeczku · reported by security@huntr.devMedium 4.3
A vulnerability in janeczku/calibre-web allows unauthorized users to view the names of private shelves belonging to other users. This issue occurs in the file shelf.py at line 221, where the name of the shelf is exposed in an error message when a user attempts to remove a book from a shelf they do not own. This vulnerability discloses private information and affects all versions prior to the fix.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 19, 2024In janeczku Calibre-Web 0.6.0 to 0.6.21, the edit_book_comments function is vulnerable to Cross Site Scripting (XSS) due to improper sanitization performed by tCVE-2024-39123 · Other software · janeczku · reported by MITREMedium 5.4
In janeczku Calibre-Web 0.6.0 to 0.6.21, the edit_book_comments function is vulnerable to Cross Site Scripting (XSS) due to improper sanitization performed by the clean_string function. The vulnerability arises from the way the clean_string function handles HTML sanitization.
- Product
- calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 15, 2023Weak Password Requirements in GitHub repository janeczku/calibre-web prior to 0.6.20.CVE-2023-2106 · Other software · janeczku · reported by security@huntr.devCritical 9.8
Weak Password Requirements in GitHub repository janeczku/calibre-web prior to 0.6.20.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 15, 2023Improper Restriction of Excessive Authentication Attempts in GitHub repository janeczku/calibre-web prior to 0.6.20.CVE-2022-2525 · Other software · janeczku · reported by security@huntr.devCritical 9.8
Improper Restriction of Excessive Authentication Attempts in GitHub repository janeczku/calibre-web prior to 0.6.20.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
May 15, 2022Calibre-Web before 0.6.18 allows user table SQL Injection.CVE-2022-30765 · Other software · Janeczku · reported by MITRECritical 9.8
Calibre-Web before 0.6.18 allows user table SQL Injection.
- Product
- Calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 4, 2022Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.18.CVE-2022-0990 · Other software · janeczku · reported by security@huntr.devCritical 9.1
Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.18.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 4, 2022Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.18.CVE-2022-0939 · Other software · janeczku · reported by security@huntr.devCritical 9.9
Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.18.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 3, 2022Improper Authorization in GitHub repository janeczku/calibre-web prior to 0.6.16.CVE-2022-0406 · Other software · janeczku · reported by security@huntr.devMedium 4.3
Improper Authorization in GitHub repository janeczku/calibre-web prior to 0.6.16.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Apr 3, 2022Improper Access Control in GitHub repository janeczku/calibre-web prior to 0.6.16.CVE-2022-0405 · Other software · janeczku · reported by security@huntr.devMedium 4.3
Improper Access Control in GitHub repository janeczku/calibre-web prior to 0.6.16.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 7, 2022Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.17.CVE-2022-0767 · Other software · janeczku · reported by security@huntr.devCritical 9.9
Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.17.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 7, 2022Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.17.CVE-2022-0766 · Other software · janeczku · reported by security@huntr.devCritical 9.8
Server-Side Request Forgery (SSRF) in GitHub repository janeczku/calibre-web prior to 0.6.17.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 30, 2022Server-Side Request Forgery (SSRF) in Pypi calibreweb prior to 0.6.16.CVE-2022-0339 · Other software · janeczku · reported by security@huntr.devCritical 9.8
Server-Side Request Forgery (SSRF) in Pypi calibreweb prior to 0.6.16.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 30, 2022Improper Access Control in Pypi calibreweb prior to 0.6.16.CVE-2022-0273 · Other software · janeczku · reported by security@huntr.devMedium 6.5
Improper Access Control in Pypi calibreweb prior to 0.6.16.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 28, 2022Cross-site Scripting (XSS) - Reflected in Pypi calibreweb prior to 0.6.16.CVE-2022-0352 · Other software · janeczku · reported by security@huntr.devMedium 6.1
Cross-site Scripting (XSS) - Reflected in Pypi calibreweb prior to 0.6.16.
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 17, 2022calibre-web is vulnerable to Cross-Site Request Forgery (CSRF)CVE-2021-4164 · Other software · janeczku · reported by security@huntr.devHigh 8.8
calibre-web is vulnerable to Cross-Site Request Forgery (CSRF)
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 17, 2022calibre-web is vulnerable to Business Logic ErrorsCVE-2021-4171 · Other software · janeczku · reported by security@huntr.devCritical 9.8
calibre-web is vulnerable to Business Logic Errors
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jan 16, 2022calibre-web is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVE-2021-4170 · Other software · janeczku · reported by security@huntr.devMedium 5.4
calibre-web is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Product
- janeczku/calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Nov 16, 2021In Calibre-web, versions 0.6.0 to 0.6.13 are vulnerable to Cross-Site Request Forgery (CSRF).CVE-2021-25965 · Other software · calibreweb · reported by vulnerabilitylab@mend.ioHigh 8.8
In Calibre-web, versions 0.6.0 to 0.6.13 are vulnerable to Cross-Site Request Forgery (CSRF). By luring an authenticated user to click on a link, an attacker can create a new user role with admin privileges and attacker-controlled credentials, allowing them to take over the application.
- Product
- calibreweb
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comwhitesourcesoftware.com
Oct 4, 2021In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”.CVE-2021-25964 · Other software · OzzieIsaacs · reported by vulnerabilitylab@mend.ioMedium 5.4
In “Calibre-web” application, v0.6.0 to v0.6.12, are vulnerable to Stored XSS in “Metadata”. An attacker that has access to edit the metadata information, can inject JavaScript payload in the description field. When a victim tries to open the file, XSS will be triggered.
- Product
- calibreweb
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comwhitesourcesoftware.com
May 3, 2020Calibre-Web 0.6.6 allows authentication bypass because of the 'A0Zr98j/3yX R~XHH!jmN]LWX/,?RT' hardcoded secret key.CVE-2020-12627 · Other software · Janeczku · reported by MITRECritical 9.8
Calibre-Web 0.6.6 allows authentication bypass because of the 'A0Zr98j/3yX R~XHH!jmN]LWX/,?RT' hardcoded secret key.
- Product
- Calibre-web
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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