CVE-2021-43725

MEDIUMNVD 6.16.1—Elevated

6.1

There is a Cross Site Scripting (XSS) vulnerability in SpotPage_login.php of Spotweb 1.5.1 and below, which allows remote attackers to inject arbitrary web script or HTML via the data[performredirect] parameter.

CVSS v3: 6.1
EG Score: 6.1(medium)
EPSS: 78.1%
KEV: Not listed

Published

March 28, 2022

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://github.com/spotweb/spotweb/commit/2bfa001689aae96009688a193c64478647ba45a1
cve@mitrehttps://github.com/spotweb/spotweb/issues/718
af854a3a-2127-422b-91ae-364da2661108https://github.com/spotweb/spotweb/commit/2bfa001689aae96009688a193c64478647ba45a1
af854a3a-2127-422b-91ae-364da2661108https://github.com/spotweb/spotweb/issues/718

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Nucleihttp/cves/2021/CVE-2021-43725.yaml
First seen Jan 1, 2021
Spotweb <= 1.5.1 - Cross Site Scripting (Reflected)
Open source ↗

Frequently asked(5)

What is CVE-2021-43725?

CVE-2021-43725 is a medium vulnerability published on March 28, 2022. There is a Cross Site Scripting (XSS) vulnerability in SpotPage_login.php of Spotweb 1.5.1 and below, which allows remote attackers to inject arbitrary web script or HTML via the data[performredirect] parameter.

When was CVE-2021-43725 disclosed?

CVE-2021-43725 was first published in the National Vulnerability Database on March 28, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-43725 actively exploited?

CVE-2021-43725 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43725?

CVE-2021-43725 has a CVSS v3 base score of 6.1 (NVD).

How do I remediate CVE-2021-43725?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43725, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-43725

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-43725?

🔗 Related CVEs(same CWE)

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Published

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References (4)

Frequently asked(5)

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