CVE-2021-33988
Cross Site Scripting in Microweber
Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.
- Record
CVE-2021-33988- 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 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.
- Record
CVE-2021-33988- Updated
- 2026-11-02
EUVDEUVD-2021-2263 No score
Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.
- Record
EUVD-2021-2263- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w7x8-cq7r-g5g9 No score
Cross Site Scripting in Microweber
Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.
- Record
GHSA-w7x8-cq7r-g5g9- Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.
- Record
CVE-2021-33988- 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-w7x8-cq7r-g5g9 No score
Cross Site Scripting in Microweber
Cross Site Scripting (XSS). vulnerability exists in Microweber CMS 1.2.7 via the Login form, which could let a malicious user execute Javascript by Inserting code in the request form.
- Record
GHSA-w7x8-cq7r-g5g9- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
microweber/microweberPackagist |
before 1.2.8 | 1.2.8 |
microweber/microweberPackagist |
before 1.2.8, plus listed versions 0.9.3460.930.9310.9340.951 Show 11 moreShow less1.0.31.0.41.0.51.0.61.0.71.1v1.2.3v1.2.4v1.2.5v1.2.6v1.2.7 |
1.2.8 |
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-2021-33988 is a medium vulnerability (CVSS 6.1) in Microweber, published October 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. Fixed in microweber/microweber 1.2.8.