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CVE Record

CVE-2021-25059: Download Plugin < 2.0.0 - Subscriber+ Website Download

The Download Plugin WordPress plugin before 2.0.0 does not properly validate a user has the required privileges to access a backup's nonce identifier, which may allow any users with an account on the site (such as subscriber) to download a full copy of the website.

MediumCVSS 5.4Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A logged-in low-privilege WordPress user could potentially download a full website backup through vulnerable versions of Download Plugin before 2.0.0. That backup may expose source code, configuration, content, and possibly credentials or secrets stored in the site files.

Executive priority

Prioritize remediation on externally reachable WordPress sites with public registration, many subscriber accounts, or sensitive configuration stored in site files. The issue is not rated critical, but full-site backup exposure can create follow-on compromise risk.

Technical view

The issue is improper privilege validation around access to a backup nonce identifier in Download Plugin before 2.0.0. CVSS 3.1 is 5.4, requiring network access and a valid account, with no user interaction. The source maps it to CWE-22, though the described impact is unauthorized backup download.

Likely exposure

Exposure is limited to WordPress sites running Download Plugin before 2.0.0 where an attacker can authenticate as any user, including subscriber-level accounts.

Exploitation context

The provided WPScan reference is tagged as exploit and technical description, but the bundle does not show active exploitation. CISA KEV status is false, so treat this as publicly documented but not confirmed exploited in the supplied evidence.

Researcher notes

Validate only with authorized, non-destructive checks. Focus on version confirmation, account privilege boundaries, backup access controls, and evidence of unauthorized backup retrieval. The source bundle does not provide enough evidence to claim active exploitation or affected forks.

Mitigation direction

  • Upgrade Download Plugin to version 2.0.0 or later where available.
  • If upgrade is unavailable, disable or remove the plugin pending vendor guidance.
  • Review and minimize low-privilege WordPress accounts, especially subscriber accounts.
  • Rotate exposed secrets if downloaded backups may have contained configuration credentials.

Validation and detection

  • Inventory WordPress sites for Download Plugin and record installed versions.
  • Confirm no site is running a version before 2.0.0.
  • Review web and WordPress logs for unusual backup download activity by low-privilege users.
  • Check whether backups contain credentials, API keys, or private source files.
Prepared
Confidence
high
Sources
3

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-22: File access and web shell behavior lookup

File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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-2021-25059 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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
2Source 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
5.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N2.82.5Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.4Medium
CVSS 3.1 vector shape for CVE-2021-25059Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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
UnknownDownload Plugin0unaffected
Weakness

CWE details

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

CWE-22 · source CWE mapping

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.