CVE-2021-3278

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 25%CVSS: 9.8Exploit: Elevated riskExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

Local Service Search Engine Management System 1.0 has a vulnerability through authentication bypass using SQL injection . Using this vulnerability, an attacker can bypass the login page.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
65
EG Risk 65/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
25%
EPSS %ILE
97th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

January 26, 2021

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Oct 3, 2026
🔬 Proof of concept available. No fix on record yet.
generic

Local Service Search Engine Management System using PHP/MySQLi with Source Code | SourceCodester

https://www.sourcecodester.com/php/14607/local-service-search-engine-management-system-using-phpmysqli-source-code.html
generic🟡 PoC Available

Local Service Search Engine Management System 1.0 - SQLi Authentication Bypass - Multiple webapps Exploit

https://www.exploit-db.com/exploits/49163
generic

Packet Storm

http://packetstormsecurity.com/files/162919/Local-Service-Search-Engine-Management-System-1.0-SQL-Injection.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 28× 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.

Showing the most recent 100 of 159 total refreshes for this CVE.

  1. 2026-10-06 15:14 UTCEPSS rescore
  2. 2026-10-05 17:40 UTCEPSS rescore
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  6. 2026-09-30 15:36 UTCEG score recompute
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  1. 2026-09-11 09:33 UTCEPSS rescore
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  27. 2026-08-13 21:57 UTCEPSS rescore
  28. 2026-08-12 13:48 UTCEPSS rescore
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  42. 2026-07-24 14:15 UTCEPSS rescore
  43. 2026-07-23 14:16 UTCEPSS rescore
  44. 2026-07-23 02:01 UTCEG score recompute
  45. 2026-07-22 22:48 UTCEG score recompute
  46. 2026-07-22 14:06 UTCEPSS rescore
  47. 2026-07-21 15:22 UTCEPSS rescore
  48. 2026-07-21 15:22 UTCEPSS rescore
  49. 2026-07-20 17:05 UTCEPSS rescore
  50. 2026-07-19 02:27 UTCEPSS rescore
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  71. 2026-07-02 16:57 UTCEPSS rescore
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  73. 2026-06-29 14:04 UTCEPSS rescore
  74. 2026-06-28 14:05 UTCEPSS rescore
  75. 2026-06-28 04:54 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-49163
    First seen Dec 2, 2020

    Local Service Search Engine Management System 1.0 - SQLi Authentication Bypass

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-3278?
CVE-2021-3278 is a critical vulnerability published on January 26, 2021. Local Service Search Engine Management System 1.0 has a vulnerability through authentication bypass using SQL injection . Using this vulnerability, an attacker can bypass the login page.
When was CVE-2021-3278 disclosed?
CVE-2021-3278 was first published on January 26, 2021, 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-2021-3278 actively exploited?
CVE-2021-3278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25% probability of exploitation in the next 30 days (97th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2021-3278?
CVE-2021-3278 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-3278?
No fix for CVE-2021-3278 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2021-3278

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