CVE-2021-33988

mediumpriority · track · 24EPSS 0.011 · 64 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.06% (64th) EPSS

CVSS 4.3 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
microweber microweber= 1.2.7nvdUScpe:2.3:a:microweber:microweber:*:*:*:*:*:*:*:*
Packagist microweber/microweber< 1.2.8osvUSpkg:composer/microweber/microweber

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-w7x8-cq7r-g5g9Cross Site Scripting in Microweber2021-10-25ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2021-10-19modified 2026-06-17

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+53016 more

references (5)

External citations — patches, advisories, analysis.

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