CVE-2021-43505

MEDIUMNVD 5.45.4—

5.4

Multiple Cross Site Scripting (XSS) vulnerabilities exist in Ssourcecodester Simple Client Management System v1 via (1) Add new Client and (2) Add new invoice.

CVSS v3: 5.4
EG Score: 5.4(medium)
EPSS: 42.8%
KEV: Not listed

Published

March 31, 2022

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://raw.githubusercontent.com/Sentinal920/Findings/main/Simple%20Client%20Management%20System/xss.txt
af854a3a-2127-422b-91ae-364da2661108https://raw.githubusercontent.com/Sentinal920/Findings/main/Simple%20Client%20Management%20System/xss.txt

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

Frequently asked(5)

What is CVE-2021-43505?

CVE-2021-43505 is a medium vulnerability published on March 31, 2022. Multiple Cross Site Scripting (XSS) vulnerabilities exist in Ssourcecodester Simple Client Management System v1 via (1) Add new Client and (2) Add new invoice.

When was CVE-2021-43505 disclosed?

CVE-2021-43505 was first published in the National Vulnerability Database on March 31, 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-2021-43505 actively exploited?

CVE-2021-43505 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43505?

CVE-2021-43505 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2021-43505?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43505, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-43505

Explore →

Is Your Infrastructure Affected by CVE-2021-43505?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-43505

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-43505?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)