CVE-2021-4121
Cross-site Scripting (XSS) - Stored in yetiforcecompany/yetiforcecrm
yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Cross-site Scripting (XSS) - Stored in yetiforcecompany/yetiforcecrm
yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
CVE-2021-4121- CVSS 3.0
- 6.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-2542
yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
EUVD-2021-2542- CVSS 3.0
- 6.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j85f-xw9x-ffwp
yetiforcecrm is vulnerable to Cross-site Scripting
yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
- Record
GHSA-j85f-xw9x-ffwp- CVSS 3.0
- 6.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
CVE-2021-4121- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 3.0
- 6.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Record
CVE-2021-4121- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVGHSA-j85f-xw9x-ffwp
yetiforcecrm is vulnerable to Cross-site Scripting
yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
- Record
GHSA-j85f-xw9x-ffwp- CVSS 3.0
- 6.4 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
yetiforce/yetiforce-crmPackagist |
through 6.3.0 | None known |
yetiforce/yetiforce-crmPackagist |
through 6.3.0, plus listed versions 4.0.04.1.04.2.04.3.04.4.0 Show 11 moreShow less4.4.0_RC14.4.0_RC24.4.0_RC35.0.05.1.05.2.05.3.06.0.06.0.0a6.1.06.2.0 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-4121 is a medium vulnerability (CVSS 6.4) in Yetiforcecompany Yetiforcecompany/yetiforcecrm, published December 16, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. No source names a fixed version.