CVE-2021-3120

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
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 37%CVSS: 9.8Exploit: NoneExposed: 0

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

An arbitrary file upload vulnerability in the YITH WooCommerce Gift Cards Premium plugin before 3.3.1 for WordPress allows remote attackers to achieve remote code execution on the operating system in the security context of the web server. In order to exploit this vulnerability, an attacker must be able to place a valid Gift Card product into the shopping cart. An uploaded file is placed at a predetermined path on the web server with a user-specified filename and extension. This occurs because the ywgc-upload-picture parameter can have a .php value even though the intention was to only allow uploads of Gift Card images.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: Track*

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%
Action: Watch closely — could escalate to Attend.
EPSS
98.3%
KEV
Not listed

Published

February 22, 2021

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Jul 5, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

YITH WooCommerce Gift Cards

https://yithemes.com/themes/plugins/yith-woocommerce-gift-cards/
generic🟡 PoC Available

GitHub - guy-liu/yith-giftdrop: Exploit for the Arbitrary File Upload vulnerability in YITH WooCommerce Gift Cards Premium · GitHub

https://github.com/guy-liu/yith-giftdrop

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 35× 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.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:00 UTCEG score recompute
  3. 2026-07-22 22:47 UTCEG score recompute
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  45. 2026-05-31 22:29 UTCEPSS rescore
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  47. 2026-05-31 00:15 UTCEPSS rescore
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  49. 2026-05-29 13:42 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-28 13:43 UTCEPSS rescore
  52. 2026-05-27 13:39 UTCEPSS rescore
  53. 2026-05-27 13:39 UTCEPSS rescore
  54. 2026-05-26 20:34 UTCEG score recompute
  55. 2026-05-26 20:34 UTCGHSA enrichment
  56. 2026-05-25 16:16 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-3120?
CVE-2021-3120 is a critical vulnerability published on February 22, 2021. An arbitrary file upload vulnerability in the YITH WooCommerce Gift Cards Premium plugin before 3.3.1 for WordPress allows remote attackers to achieve remote code execution on the operating system in the security context of the web server. In order to exploit this vulnerability, an attacker must be…
When was CVE-2021-3120 disclosed?
CVE-2021-3120 was first published in the National Vulnerability Database on February 22, 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-2021-3120 actively exploited?
CVE-2021-3120 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-3120?
CVE-2021-3120 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-3120?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-3120, 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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