Vulnerability-Lookup

CVE-2026-68900 (GCVE-0-2026-68900)

Vulnerability from cvelistv5 – Published: 2026-08-19 19:26 – Updated: 2026-08-19 19:43

Title

Wekan: Stored XSS in HTML board exports through a card-title second parse

Summary

Wekan is open source kanban built with Meteor. From 8.72 until 10.23, addBoardHTMLToZip() in client/lib/exportHTML.js read a card title and body through textContent, which decoded entity-encoded markup, and then interpolated titleText and allText into content.innerHTML in the exported index.html. A board member could store an entity-encoded event-handler payload in a card title that remained inert on the live board but was reparsed and executed when a recipient clicked the card in the downloaded HTML export, allowing the script to read and transmit all board data contained in that export, including content added after the attacker's membership was removed. Version 10.23 builds the modal with DOM nodes and assigns untrusted values through textContent. This issue is fixed in version 10.23.

Severity

7.6 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-19 19:43 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/wekan/wekan/security/advisorie…	x_refsource_CONFIRM
https://github.com/wekan/wekan/commit/2d32e34621d…	x_refsource_MISC
https://github.com/wekan/wekan/releases/tag/v10.23	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
wekan	wekan	Affected: >= 8.72, < 10.23	guessed

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-68900",
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                    "Automatable": "no"
                  },
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-08-19T19:43:22.561509Z",
                "version": "2.0.3"
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          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/wekan/wekan/releases/tag/v10.23"
        }
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      "source": {
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        "discovery": "UNKNOWN"
      },
      "title": "Wekan: Stored XSS in HTML board exports through a card-title second parse"
    }
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    "dateReserved": "2026-07-31T21:04:04.039Z",
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FKIE_CVE-2026-68900

Vulnerability from fkie_nvd - Published: 2026-08-19 20:17 - Updated: 2026-08-19 20:17

Severity

7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/wekan/wekan/commit/2d32e34621d340b00be4f66a6a2106ab4575cc70
	security-advisories@github.com	https://github.com/wekan/wekan/releases/tag/v10.23
	security-advisories@github.com	https://github.com/wekan/wekan/security/advisories/GHSA-8r5p-4q9j-f5jx
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/wekan/wekan/security/advisories/GHSA-8r5p-4q9j-f5jx

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "wekan",
          "vendor": "wekan",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.72, \u003c 10.23"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wekan is open source kanban built with Meteor. From 8.72 until 10.23, addBoardHTMLToZip() in client/lib/exportHTML.js read a card title and body through textContent, which decoded entity-encoded markup, and then interpolated titleText and allText into content.innerHTML in the exported index.html. A board member could store an entity-encoded event-handler payload in a card title that remained inert on the live board but was reparsed and executed when a recipient clicked the card in the downloaded HTML export, allowing the script to read and transmit all board data contained in that export, including content added after the attacker\u0027s membership was removed. Version 10.23 builds the modal with DOM nodes and assigns untrusted values through textContent. This issue is fixed in version 10.23."
    }
  ],
  "id": "CVE-2026-68900",
  "lastModified": "2026-08-19T20:17:21.727",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
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            },
            {
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          "timestamp": "2026-08-19T19:43:22.561509Z",
          "version": "2.0.3"
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  "published": "2026-08-19T20:17:21.727",
  "references": [
    {
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    },
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      "source": "security-advisories@github.com",
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    },
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  "vulnStatus": "Received",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-68900 (GCVE-0-2026-68900)

FKIE_CVE-2026-68900

Tags

Sightings

Nomenclature