CVE-2024-35621
formwork Cross-site scripting vulnerability in Markdown fields
A cross-site scripting (XSS) vulnerability in the Edit function of Formwork before 1.13.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Content field.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
A cross-site scripting (XSS) vulnerability in the Edit function of Formwork before 1.13.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Content field.
- Record
CVE-2024-35621- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2024-1635
A cross-site scripting (XSS) vulnerability in the Edit function of Formwork before 1.13.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Content field.
- Record
EUVD-2024-1635- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gx8m-f3mp-fg99
formwork Cross-site scripting vulnerability in Markdown fields
Impact
Users with access to the administration panel with page editing permissions could insert <script> tags in markdown fields, which are exposed on the publicly accessible site pages, leading to potential XSS injections.
Patches
- Formwork 1.13.0 has been released with a patch that solves this vulnerability. Now the system config option
content.safe_mode(enabled by default) controls whether HTML tags and potentially dangerous links are escaped. This is configurable as in some cases more flexibility should be given. Panel users should be only a controlled group of editors, which cannot enable the option by themselves, and not a generic group. This mitigates the chance of introducing vulnerabilities. - Formwork 2.x (6adc302) adds a similar
content.safeModesystem option. Like Formwork 1.13.0, by default HTML tags and dangerous link are escaped. Even if enabled by an administrator, however,<script>and other dangerous tags are still converted to text, but secure tags are allowed.
References
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35621
- Record
GHSA-gx8m-f3mp-fg99- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
A cross-site scripting (XSS) vulnerability in the Edit function of Formwork before 1.13.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Content field.
- Record
CVE-2024-35621- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
A cross-site scripting (XSS) vulnerability in the Edit function of Formwork before 1.13.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Content field.
- Record
CVE-2024-35621- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-gx8m-f3mp-fg99
formwork Cross-site scripting vulnerability in Markdown fields
Impact
Users with access to the administration panel with page editing permissions could insert <script> tags in markdown fields, which are exposed on the publicly accessible site pages, leading to potential XSS injections.
Patches
- Formwork 1.13.0 has been released with a patch that solves this vulnerability. Now the system config option
content.safe_mode(enabled by default) controls whether HTML tags and potentially dangerous links are escaped. This is configurable as in some cases more flexibility should be given. Panel users should be only a controlled group of editors, which cannot enable the option by themselves, and not a generic group. This mitigates the chance of introducing vulnerabilities. - Formwork 2.x (6adc302) adds a similar
content.safeModesystem option. Like Formwork 1.13.0, by default HTML tags and dangerous link are escaped. Even if enabled by an administrator, however,<script>and other dangerous tags are still converted to text, but secure tags are allowed.
References
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35621
- Record
GHSA-gx8m-f3mp-fg99- CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
getformwork/formworkPackagist |
before 1.13.0 | 1.13.0 |
getformwork/formworkPackagist |
before 1.13.0, plus listed versions 0.10.00.10.10.10.20.10.30.10.4 Show 45 moreShow less0.10.50.11.00.11.10.11.20.12.00.12.10.6.100.6.110.6.120.6.90.7.00.7.10.7.20.8.00.8.10.9.00.9.10.9.20.9.30.9.40.9.50.9.61.0.01.1.01.1.11.10.01.10.11.10.21.10.31.11.01.11.11.12.01.12.11.2.01.2.11.3.01.3.11.4.01.4.11.4.21.4.31.4.41.4.51.4.61.4.7 |
1.13.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-35621 is a medium vulnerability (CVSS 4.8) in getformwork/formwork, published May 28, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. Fixed in getformwork/formwork 1.13.0.
References
github.com/getformwork/formwork/security/advisories/GHSA-gx8m-f3mp-fg99
nvd.nist.gov/vuln/detail/CVE-2024-35621
Left out here: 10 versions. The JSON record has them.