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CVE Record

CVE-2021-39314: WooCommerce EnvioPack <= 1.2 Reflected Cross-Site Scripting

The WooCommerce EnvioPack WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the dataid parameter found in the ~/includes/functions.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.2.

MediumCVSS 6.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A WordPress ecommerce shipping plugin exposed some sites to reflected cross-site scripting. An attacker would need to trick a user into opening a crafted link, which could run script in that user’s browser. This is not listed as actively exploited in KEV.

Executive priority

Treat as a moderate-priority web risk. Prioritize internet-facing ecommerce sites and administrator workflows, but do not treat it as emergency exploitation unless new evidence appears.

Technical view

WooCommerce EnvioPack versions up to and including 1.2 are vulnerable to reflected XSS through the dataid parameter in includes/functions.php. The CVSS 3.1 score is 6.1, with network access, low complexity, no privileges required, and user interaction required.

Likely exposure

Exposure is limited to WordPress sites running WooCommerce EnvioPack version 1.2 or earlier, especially public ecommerce sites where users or administrators may follow links while authenticated.

Exploitation context

The source bundle does not show active exploitation. Because this is reflected XSS, exploitation depends on social engineering or another delivery path that causes a target user to visit attacker-controlled input.

Researcher notes

Evidence identifies CWE-79 reflected XSS in the dataid parameter and affected versions through 1.2. The provided sources do not name a fixed version, patch commit, or exploitation in the wild.

Mitigation direction

  • Inventory WordPress sites for WooCommerce EnvioPack version 1.2 or earlier.
  • Check WordPress plugin and vendor guidance for a fixed or maintained release.
  • Disable or remove WooCommerce EnvioPack where it is not business-critical.
  • Use web application filtering for reflected XSS as a compensating control.

Validation and detection

  • Confirm whether WooCommerce EnvioPack is installed and record its version.
  • Review public routes that load plugin functionality for exposure.
  • Check web logs for unusual requests referencing the dataid parameter.
  • Use approved scanners to validate reflected XSS without harmful payloads.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-79: User-session and phishing behavior lookup

Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-39314 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.1 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.1CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.1Medium
CVSS 3.1 vector shape for CVE-2021-39314Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
WooCommerce EnvioPackWooCommerce EnvioPack1.2Listed
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.